Antonym Definition

ăntə-nĭm
antonyms
noun
antonyms
A word having a meaning opposite to that of another word.
The word “wet” is an antonym of the word “dry.”
American Heritage
A word that is opposite in meaning to another word.
“sad” is an antonym of “happy”
Webster's New World
The definition of antonyms are words that have contrasting meanings.
An example of antonyms are light and dark.
YourDictionary

(semantics) A word which has the opposite meaning of another, although not necessarily in all its senses.

"rich" is an antonym of "poor"; "full" is an antonym of "empty".
Wiktionary
Antonyms:
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Other Word Forms of Antonym

Noun

Singular:
antonym
Plural:
antonyms

Origin of Antonym

  • circa 1870: ant- +‎ -onym

    From Wiktionary

  • ant(i)– –onym

    From American Heritage Dictionary of the English Language, 5th Edition

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antonym
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