Word Formation & Derivatives
Prefixes, suffixes, compounds, inflections, and derived word families.
7226 words
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Some words in this topic are A2–C2 — part of Pro. A1 words are always free.
Go ProC2+ (5170) Pro
heedless
C2+
/ˈhiːdləs/
showing a reckless lack of care or attention
M
S
hefty
C2+
/ˈhɛfti/
large, heavy, and powerful; substantial in amount
M
S
homosexual
C2+
/ˌhoʊməˈsɛkʃuəl/
sexually attracted to people of one's own sex
M
S
humanistic
C2+
/ˌhjuːməˈnɪstɪk/
relating to human values, interests, or the study of humanities
M
S
humility
C2+
/hjuˈmɪlɪti/
a modest or humble view of one's own importance
M
S
hurty
C2+
/ˈhɝti/
causing or feeling pain (informal)
M
S
hydrate
C2+
/ˈhaɪˌdreɪt/
to supply with water; a compound containing water molecules
M
S
hyperbolize
C2+
/haɪˈpɝbəˌlaɪz/
to exaggerate or describe in extravagant terms
M
S
idealism
C2+
/aɪˈdiːəˌlɪzəm/
the pursuit of high ideals; a philosophy stressing mind or ideas
M
S
identicalness
C2+
/aɪˈdɛntɪkəlnəs/
the state of being exactly the same
M
S
ignominy
C2+
/ˈɪɡnəmɪni/
public shame or disgrace resulting from dishonourable conduct
M
S
immanent
C2+
/ˈɪmənənt/
existing or operating within; inherent and pervading the natural world
M
S
immorally
C2+
/ɪˈmɔrəli/
in a way that violates accepted principles of right conduct
M
S
impairment
C2+
/ɪmˈpɛrmənt/
a weakening or damaging of a function, faculty, or value
M
S
impending
C2+
/ɪmˈpɛndɪŋ/
about to happen, especially something threatening or unwelcome
M
S
imprecate
C2+
/ˈɪmprɪkeɪt/
to invoke or call down a curse upon someone
M
S
inadequacy
C2+
/ɪnˈædɪkwəsi/
the state of being insufficient or not good enough for a purpose
M
S
inauspicious
C2+
/ˌɪnɔˈspɪʃəs/
not promising success; suggesting that the future is unlucky
M
S
incantation
C2+
/ˌɪnkænˈteɪʃən/
a series of words said as a magic spell or charm
M
S
incontinently
C2+
/ɪnˈkɑntɪnəntli/
without restraint; (archaic) immediately or at once
M
S
indecent
C2+
/ɪnˈdisənt/
offending against accepted standards of decency or propriety
M
S
indeterminate
C2+
/ˌɪndɪˈtɜrmɪnət/
not exactly known, established, or fixed in nature or extent
M
S
indicative
C2+
/ɪnˈdɪkətɪv/
serving as a sign or indication of something
M
S
indifferently
C2+
/ɪnˈdɪfrəntli/
without interest or concern; in a mediocre manner
M
S
indistinguishable
C2+
/ˌɪndɪˈstɪŋɡwɪʃəbəl/
impossible to tell apart from something else
M
S
indoctrinate
C2+
/ɪnˈdɑktrɪneɪt/
to teach someone to accept a set of beliefs uncritically
M
S
inelegant
C2+
/ɪnˈɛlɪɡənt/
lacking grace, refinement, or style
M
S
informatory
C2+
/ɪnˈfɔrmətɔri/
giving information; instructive
M
S
infrequent
C2+
/ɪnˈfrikwənt/
not occurring often; rare
M
S
ingeniousness
C2+
/ɪnˈdʒinjəsnəs/
the quality of being clever, original, and inventive
M
S
ingress
C2+
/ˈɪnɡrɛs/
the act or means of entering a place
M
S
initialize
C2+
/ɪˈnɪʃəlaɪz/
to set to a starting state; to prepare a device or variable for use
M
S
innately
C2+
/ɪˈneɪtli/
in a way that is inborn or natural rather than learned
M
S
innocence
C2+
/ˈɪnəsəns/
freedom from guilt, sin, or worldly knowledge
M
S
instability
C2+
/ˌɪnstəˈbɪləti/
the state of being unsteady, unreliable, or prone to change
M
S
instructive
C2+
/ɪnˈstrʌktɪv/
useful in providing knowledge or information; enlightening
M
S
intimately
C2+
/ˈɪntɪmətli/
in a close, personal, or detailed way
M
S
intricate
C2+
/ˈɪntrɪkət/
very complicated or detailed in structure or arrangement
M
S
introductory
C2+
/ˌɪntrəˈdʌktəri/
serving as a beginning or first part; preliminary
M
S
invalidate
C2+
/ɪnˈvælɪdeɪt/
to make something no longer valid or legally binding
M
S
invaluable
C2+
/ɪnˈvæljuəbəl/
extremely useful; too precious to be measured in value
M
S
inveterate
C2+
/ɪnˈvɛtərət/
having a long-established and unlikely-to-change habit
M
S
invincible
C2+
/ɪnˈvɪnsəbəl/
too powerful to be defeated or overcome
M
S
irregardless
C2+
/ˌɪrɪˈɡɑrdləs/
(nonstandard) regardless; without regard to circumstances
M
S
journeyman
C2+
/ˈdʒɜrnimən/
a trained worker qualified in a trade; a competent but unremarkable performer
M
S
judiciary
C2+
/dʒuˈdɪʃiɛri/
the branch of government, or the body of judges, that administers justice
M
S
justicer
C2+
/ˈdʒʌstɪsər/
(archaic) one who administers justice; a judge or magistrate
M
S
justiciar
C2+
/dʒʌˈstɪʃiər/
a high medieval English judicial and administrative officer of the crown
M
S
knotty
C2+
/ˈnɑti/
full of knots; complicated and difficult to solve
M
S
lackadaisical
C2+
/ˌlækəˈdeɪzɪkəl/
lacking enthusiasm, energy, or determination
M
S
lastingly
C2+
/ˈlæstɪŋli/
in a way that endures over a long period
M
S
likeliness
C2+
/ˈlaɪklinəs/
the quality of being probable; likelihood
M
S
loneness
C2+
/ˈloʊnnəs/
(literary) the state of being alone or solitary
M
S
longing
C2+
/ˈlɔŋɪŋ/
a strong, persistent yearning or desire
M
S
loudness
C2+
/ˈlaʊdnəs/
the quality or degree of being loud; perceived sound intensity
M
S
luckless
C2+
/ˈlʌkləs/
having or bringing no luck; unfortunate
M
S
lustrate
C2+
/ˈlʌstreɪt/
to purify ceremonially, especially by ritual washing or sacrifice
M
S
macroscopic
C2+
/ˌmækrəˈskɑpɪk/
large enough to be seen by the naked eye; large-scale
M
S
managerial
C2+
/ˌmænəˈdʒɪriəl/
relating to the work or skills of a manager
M
S
manipulator
C2+
/məˈnɪpjəleɪtər/
a person who controls others unfairly; a device for handling objects
M
S
markworthy
C2+
/ˈmɑrkwɜrði/
(rare) worthy of notice or remark; noteworthy
M
S
matrimony
C2+
/ˈmætrɪmoʊni/
the state or ceremony of being married; marriage
M
S
meagerly
C2+
/ˈmiɡərli/
in a scanty or insufficient manner
M
S
meditative
C2+
/ˈmɛdɪteɪtɪv/
given to or expressing deep, calm thought
M
S
mentionable
C2+
/ˈmɛnʃənəbəl/
fit or suitable to be mentioned
M
S
merriment
C2+
/ˈmɛrimənt/
gaiety and fun; lively cheerfulness
M
S
microscopical
C2+
/ˌmaɪkrəˈskɑpɪkəl/
of or relating to the microscope; visible only under magnification
M
S
mildly
C2+
/ˈmaɪldli/
to a moderate degree; gently
M
S
misdeed
C2+
/ˌmɪsˈdid/
a wicked or illegal act; a wrongdoing
M
S
misdoing
C2+
/ˌmɪsˈduɪŋ/
a wrong or improper action; misconduct
M
S
moderation
C2+
/ˌmɑdəˈreɪʃən/
the avoidance of excess or extremes; restraint
M
S
movable
C2+
/ˈmuvəbəl/
capable of being moved; not fixed in place
M
S
multicolored
C2+
/ˈmʌltiˌkʌlərd/
having many colours
M
S
nappy
C2+
/ˈnæpi/
a baby's diaper; or (of hair) tightly curled and frizzy
M
S
narration
C2+
/næˈreɪʃən/
the act or process of telling a story or describing events
M
S
naturalism
C2+
/ˈnætʃərəˌlɪzəm/
a style or doctrine depicting things as they really are in nature
M
S
negate
C2+
/nɪˈɡeɪt/
to nullify or render ineffective
M
S
negligence
C2+
/ˈnɛɡlɪdʒəns/
failure to take proper or reasonable care
M
S
nicety
C2+
/ˈnaɪsɪti/
a fine or subtle point of detail or distinction
M
S
nictitate
C2+
/ˈnɪktɪˌteɪt/
to wink or blink, especially with a nictitating membrane
M
S
nocuous
C2+
/ˈnɑkjuəs/
harmful, noxious, or poisonous
M
S
noiseless
C2+
/ˈnɔɪzləs/
making or accompanied by no sound
M
S
nonconformity
C2+
/ˌnɑnkənˈfɔrmɪti/
failure or refusal to conform to accepted rules or conventions
M
S
noneffervescent
C2+
/ˌnɑnˌɛfərˈvɛsənt/
not bubbling or fizzing; lacking effervescence
M
S
nonsingular
C2+
/ˌnɑnˈsɪŋɡjələr/
of a matrix, having an inverse; invertible
M
S
nonspecific
C2+
/ˌnɑnspɪˈsɪfɪk/
not specific; vague or not limited to a particular cause or type
M
S
nonuniformity
C2+
/ˌnɑnˌjunɪˈfɔrmɪti/
the state of not being uniform or consistent throughout
M
S
normalize
C2+
/ˈnɔrməˌlaɪz/
to bring into conformity with a standard or norm; to make normal
M
S
normative
C2+
/ˈnɔrmətɪv/
relating to or prescribing a norm or standard
M
S
noticeably
C2+
/ˈnoʊtɪsəbli/
to a degree that is clearly perceptible
M
S
nullify
C2+
/ˈnʌlɪˌfaɪ/
to make legally void or cancel out the effect of
M
S
observably
C2+
/əbˈzɜrvəbli/
in a way that can be observed or perceived
M
S
observational
C2+
/ˌɑbzərˈveɪʃənəl/
based on observing rather than experimenting or theorizing
M
S
obstruction
C2+
/əbˈstrʌkʃən/
a thing that blocks a way or passage; the act of hindering
M
S
older
C2+
/ˈoʊldər/
comparative of old; having lived or existed longer
M
S
opaqueness
C2+
/oʊˈpeɪknəs/
the quality of not letting light through; obscurity of meaning
M
S
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