antonymnounmasculine/ɐ̃ˈtɔnimu/mediuman·tó·ni·moPortuguesEnglishEspanolFrancaisDefinitionA word whose meaning is opposite to that of another word.'Fast' is an antonym of 'slow'.The teacher asked for the antonym of 'generous'.synoppositeantsynonymCommon collocationsperfect antonymgradable antonymantonym dictionaryEtymologyDo grego antí (contra) + ónoma (nome).Related wordsantonímiasinónimohomónimo