How does the adjective opposite differ from other similar words? Some common synonyms of opposite are antithetical, contradictory, and contrary.

What is the opposite word of synonym?

Even antonym has an antonym! The opposite of antonym is synonym, which is a word that has the same meaning as another word.

What is the antonym for?

English Language Learners Definition of antonym

: a word with a meaning that is opposite to the meaning of another word.