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Word
English Vocabulary
Pick a CEFR level (A1–C2, plus C2+ for rare words beyond the CEFR scale) — A1 is the friendliest place to start — and browse its words grouped by topic: travel, food, the body, emotions, and more. Each word shows its meaning, example sentences, and US/UK pronunciation.
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View all levelsC2+ is beyond the official CEFR scale: rare, specialist, and literary words kept for reference.
3135 words
inauthentic
C2+
/ˌɪnɔˈθɛntɪk/
not genuine or true to itself; fake or insincere
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incalculable
C2+
/ɪnˈkælkjələbəl/
too great or uncertain to be reckoned or measured
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inceptive
C2+
/ɪnˈsɛptɪv/
relating to or marking the beginning of an action or state
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inchoative
C2+
/ɪnˈkoʊətɪv/
expressing the beginning of an action or a change of state, especially in grammar
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incoming
C2+
/ˈɪnˌkʌmɪŋ/
coming in or arriving; about to take up a position
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incompliant
C2+
/ˌɪnkəmˈplaɪənt/
unwilling to comply or yield; not conforming
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inconceivable
C2+
/ˌɪnkənˈsivəbəl/
impossible to imagine or believe
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inconspicuous
C2+
/ˌɪnkənˈspɪkjuəs/
not clearly visible or attracting attention
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incorruptible
C2+
/ˌɪnkəˈrʌptəbəl/
not susceptible to corruption, bribery, or decay
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indecisive
C2+
/ˌɪndɪˈsaɪsɪv/
unable to make decisions, or not producing a clear result
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indeedy
C2+
/ɪnˈdidi/
indeed (a colloquial, emphatic, often jocular intensifier)
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indelicate
C2+
/ɪnˈdɛlɪkət/
lacking tact, refinement, or modesty
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indestructible
C2+
/ˌɪndɪˈstrʌktəbəl/
impossible to destroy or break down
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indigent
C2+
/ˈɪndɪdʒənt/
poor and needy; lacking the means of subsistence
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indigo
C2+
/ˈɪndɪɡoʊ/
a deep blue-violet colour or the dye that produces it
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indisputable
C2+
/ˌɪndɪˈspjutəbəl/
unable to be challenged or denied
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indisputably
C2+
/ˌɪndɪˈspjutəbli/
in a way that cannot be questioned or denied
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inducive
C2+
/ɪnˈdusɪv/
tending to induce or bring about something (rare for inductive)
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inefficient
C2+
/ˌɪnɪˈfɪʃənt/
not achieving maximum productivity; wasteful of time or resources
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inelastic
C2+
/ˌɪnɪˈlæstɪk/
not flexible, or not changing much in response to change
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ineluctably
C2+
/ˌɪnɪˈlʌktəbli/
in a way that cannot be avoided or escaped
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inescapably
C2+
/ˌɪnɪˈskeɪpəbli/
in a way that cannot be avoided
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inexact
C2+
/ˌɪnɪɡˈzækt/
not precise or strictly accurate
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inexpert
C2+
/ɪnˈɛkspɝt/
lacking skill or experience; unskilled
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infamously
C2+
/ˈɪnfəməsli/
in a way that is well known for being bad or wicked
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infantine
C2+
/ˈɪnfəntaɪn/
of or like an infant; childish or babyish
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infortunate
C2+
/ɪnˈfɔrtʃənət/
unfortunate; unlucky (archaic)
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ingeniously
C2+
/ɪnˈdʒinjəsli/
in a clever, original, and inventive manner
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inglorious
C2+
/ɪnˈɡlɔriəs/
causing shame or lacking honor; ignominious
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ingrateful
C2+
/ɪnˈɡreɪtfəl/
unthankful; failing to show gratitude (archaic for ungrateful)
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ingratiatory
C2+
/ɪnˈɡreɪʃiəˌtɔri/
intended to win favor or approval; ingratiating
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inhabitable
C2+
/ɪnˈhæbɪtəbəl/
capable of being lived in; habitable
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inheritable
C2+
/ɪnˈhɛrɪtəbəl/
capable of being passed to or received by an heir or descendant
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inhumane
C2+
/ˌɪnhjuˈmeɪn/
lacking compassion or kindness; cruel
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injudicial
C2+
/ˌɪndʒuˈdɪʃəl/
not in accordance with sound judgment or proper legal procedure
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inmost
C2+
/ˈɪnˌmoʊst/
farthest within; most intimate or private
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innovational
C2+
/ˌɪnəˈveɪʃənəl/
relating to or characterized by innovation
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innovatory
C2+
/ˈɪnəˌveɪtəri/
introducing or featuring new methods or ideas; innovative
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inofficial
C2+
/ˌɪnəˈfɪʃəl/
not official; lacking formal authority (archaic for unofficial)
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inquisitive
C2+
/ɪnˈkwɪzətɪv/
eager for knowledge; curious, sometimes unduly prying
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inshore
C2+
/ˌɪnˈʃɔr/
situated in or moving toward the water near the shore
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insincere
C2+
/ˌɪnsɪnˈsɪr/
not expressing genuine feelings; hypocritical
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instable
C2+
/ɪnˈsteɪbəl/
not stable; liable to change or collapse (archaic for unstable)
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insultant
C2+
/ɪnˈsʌltənt/
insulting or insolent; one who insults (archaic/rare)
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interactional
C2+
/ˌɪntɚˈækʃənəl/
relating to interaction between people or things
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interepidemic
C2+
/ˌɪntɚˌɛpɪˈdɛmɪk/
occurring in the period between successive epidemics
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interindividual
C2+
/ˌɪntɚˌɪndəˈvɪdʒuəl/
occurring or existing between separate individuals
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interjectory
C2+
/ˌɪntɚˈdʒɛktəri/
of the nature of an interjection; thrown in parenthetically
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interminably
C2+
/ɪnˈtɝmɪnəbli/
in a way that seems to last forever; endlessly
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intermittent
C2+
/ˌɪntɚˈmɪtənt/
occurring at irregular intervals; not continuous
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internally
C2+
/ɪnˈtɝnəli/
on or within the inside; in one's mind or within an organization
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interparliamentary
C2+
/ˌɪntɚˌpɑrləˈmɛntəri/
existing or conducted between parliaments or their members
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interpretative
C2+
/ɪnˈtɝprɪˌteɪtɪv/
serving to explain or expound meaning; interpretive
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intertropical
C2+
/ˌɪntɚˈtrɑpɪkəl/
situated or occurring between the tropics
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intractable
C2+
/ɪnˈtræktəbəl/
hard to control, manage, or resolve; stubborn
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intrepid
C2+
/ɪnˈtrɛpɪd/
fearless; resolutely brave in the face of danger
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introspective
C2+
/ˌɪntrəˈspɛktɪv/
given to examining one's own thoughts and feelings
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inverse
C2+
/ˌɪnˈvɝs/
opposite in order, direction, or effect; a thing that is the reverse of another
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invidious
C2+
/ɪnˈvɪdiəs/
likely to arouse resentment or unfair distinction; offensive
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inviolate
C2+
/ɪnˈvaɪələt/
free from violation, injury, or desecration; intact
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invisibly
C2+
/ɪnˈvɪzəbli/
in a manner that cannot be seen
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involuntary
C2+
/ɪnˈvɑlənˌtɛri/
done without conscious will or intention
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involutional
C2+
/ˌɪnvəˈluʃənəl/
relating to a shrinking or degenerative decline of an organ or faculty with age
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invulnerable
C2+
/ɪnˈvʌlnərəbəl/
incapable of being wounded, harmed, or overcome
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ireful
C2+
/ˈaɪərfəl/
full of anger; wrathful
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irenic
C2+
/aɪˈrɛnɪk/
aiming at or promoting peace and conciliation
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irenical
C2+
/aɪˈrɛnɪkəl/
tending toward peace or reconciliation; conciliatory
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irrefutable
C2+
/ɪˈrɛfjətəbəl/
impossible to deny or disprove
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irrelated
C2+
/ˌɪrɪˈleɪtɪd/
not related or connected
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islandic
C2+
/ˈaɪləndɪk/
of or relating to an island; insular
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isolatedly
C2+
/ˈaɪsəˌleɪtɪdli/
in an isolated or separated manner
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itinerant
C2+
/aɪˈtɪnərənt/
traveling from place to place, especially for work
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jacobinic
C2+
/ˌdʒækəˈbɪnɪk/
of or characteristic of radical revolutionary politics
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jacobinical
C2+
/ˌdʒækəˈbɪnɪkəl/
marked by extreme revolutionary radicalism
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jannock
C2+
/ˈdʒænək/
honest, fair, and straightforward (dialectal); also a loaf of oaten bread
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jeopardous
C2+
/ˈdʒɛpərdəs/
full of danger or risk; perilous
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journalistic
C2+
/ˌdʒɜrnəˈlɪstɪk/
of or characteristic of journalism or journalists
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judicatory
C2+
/ˈdʒudɪkəˌtɔri/
relating to the administration of justice; a court or tribunal
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judicious
C2+
/dʒuˈdɪʃəs/
having or showing good judgment; prudent
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jumbo
C2+
/ˈdʒʌmboʊ/
unusually large in size
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juridical
C2+
/dʒʊˈrɪdɪkəl/
relating to judicial proceedings or the law
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jutting
C2+
/ˈdʒʌtɪŋ/
projecting or sticking out abruptly
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juvenal
C2+
/ˈdʒuvənəl/
youthful; of the plumage of a young bird
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kiddish
C2+
/ˈkɪdɪʃ/
childish; resembling or befitting a child
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kindhearted
C2+
/ˌkaɪndˈhɑrtɪd/
having a kind and sympathetic nature
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knowledgeably
C2+
/ˈnɑlɪdʒəbli/
in a manner showing knowledge or expertise
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labyrinthal
C2+
/ˌlæbəˈrɪnθəl/
resembling a labyrinth; intricate and maze-like
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lambent
C2+
/ˈlæmbənt/
glowing softly; flickering lightly over a surface
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lanate
C2+
/ˈleɪneɪt/
covered with or consisting of woolly hairs
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latently
C2+
/ˈleɪtəntli/
in a hidden or dormant manner, not yet manifest
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latitat
C2+
/ˈlætɪˌtæt/
an old common-law writ summoning a defendant presumed to be in hiding
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latitudinarian
C2+
/ˌlætɪˌtudəˈnɛriən/
tolerant of varying views, especially in religion
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leery
C2+
/ˈlɪri/
wary or suspicious; cautious because of distrust
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legato
C2+
/lɪˈɡɑtoʊ/
in a smooth, connected manner, with notes flowing into one another
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leisured
C2+
/ˈliʒɚd/
having ample free time; unhurried
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lengthful
C2+
/ˈlɛŋkθfəl/
having considerable length; lengthy
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