US /ˈheɪnəs/ UK /ˈheɪnəs/
adj Freq #13510

Meanings

  1. 1
    adj

    Totally reprehensible.

    I hope they catch the person responsible for that heinous crime.

Thesaurus

Synonyms
1 adj · totally reprehensible. abominablehorribleodious
Opposites
unheinous
Word family
Derived forms heinouslyheinousnessunheinous
Related forms hate

Etymology

From Middle English hainous, from Old French haïneus (compare French haineux) from haïr (“to hate”), hadir (“to hate”) (compare Old French enhadir (“to become filled with hate”)), from Frankish *hattjan (“to hate”) The fluctuation between pronunciations with /eɪ/ and /iː/ is old; the former reflects adoption of an unmonophthongised pronunciation of Old French -ai-, while the latter reflects a monophthongised form.

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