antonym

[ an-tuh-nim ]
/ ˈæn tə nɪm /

noun

a word opposite in meaning to another. Fast is an antonym of slow.Compare synonym(def 1).

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. 2019

Examples from the Web for antonyms

British Dictionary definitions for antonyms

antonym

/ (ˈæntənɪm) /

noun

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 antonyms

antonym


n.
Online Etymology Dictionary, © 2010 Douglas Harper

Culture definitions for antonyms

antonyms

[ (an-tuh-nimz) ]

Two words with opposite meanings. Cold and hot are antonyms; so are small and large. (Compare synonyms.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.