antonym

[an-tuh-nim]
See more synonyms for antonym on Thesaurus.com

Origin of antonym

First recorded in 1865–70; ant- + (syn)onym
Related formsan·ton·y·mous [an-ton-uh-muh s] /ænˈtɒn ə məs/, an·to·nym·ic, adjectivean·ton·y·my, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for antonym

reverse, opposite

Examples from the Web for antonym

Historical Examples of antonym

  • Logically the other side of white is not white, while the antonym is the extreme black.

    Public Speaking

    Clarence Stratton

  • By and by, which was once a synonym, has become an antonym of immediately, meaning at some (perhaps remote) future time.

    English Synonyms and Antonyms

    James Champlin Fernald

  • In strict usage, daily is the antonym of nightly as diurnal is of nocturnal.

    English Synonyms and Antonyms

    James Champlin Fernald


British Dictionary definitions for antonym

antonym

noun
  1. a word that means the opposite of another word``empty'' is an antonym of ``full''
Derived Formsantonymous (ænˈtɒnɪməs), adjective

Word Origin for antonym

C19: from Greek antōnumia, from anti- + onoma name
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for antonym
n.

1867, coined to serve as opposite of synonym, from Greek anti- "equal to, instead of, opposite" (see anti-) + -onym "name" (see name (n.)). Perhaps introduced to English in the book "Synonyms and Antonyms" (1867) by the Ven. C.J. Smith, M.A.

UNDER the head of Synonyms and Antonyms, Archdeacon Smith arranges words which form an antithesis to one another. The word "antonym" is, we believe, a new formation but useful. ["Journal of Sacred Literature," July 1867]

French antonyme (1842), German antonym (by 1859) are older. The un-Greek alternative counterterm has been left to fade.

Online Etymology Dictionary, © 2010 Douglas Harper