(Mathematics) An additive inverse.
Financial or other help.
(Logic) A proposition related to another in such a way that if the latter is true, the former must be false, but if the latter is false, the former is not necessarily true.
The direct or exact opposite:
A proposition derived by negating and permuting the terms of another, equivalent proposition; for example, All not-Y is not-X is the contrapositive of All X is Y.
A mechanism, etc. for reversing, as a gear arrangement in a transmission that causes a machine, motor vehicle, etc. to run backward or in the opposite direction
a word that expresses a meaning opposed to the meaning of another word, in which case the two words are antonyms of each other
A counter is defined as a person or thing that counts or keeps score, or a long flat work space.
The opposite or reverse.
Find another word for antonym. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for antonym, like: opposite, support, antipode, antipodes, contrary, antithesis, contrapositive, synonym, reverse, opposite word and adjective.