(Mathematics) An additive inverse.
(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.
Financial or other help.
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 counter is defined as a person or thing that counts or keeps score, or a long flat work space.
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
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, contrary, support, antipode, antithesis, contrapositive, antipodes, counter, reverse, opposite word and verbum.