opposite

being as different as possible those two are fundamentally opposite—she being loquacious and outgoing where he is quiet and reserved Synonyms antipodal, antipodean, antithetical, contradictory, contrary, diametric (or diametrical), polar Related Words adverse, negative, unfavorable; antagonistic, antipathetic, counter, cross, hostile; converse, inverse, obverse, reverse; alien, disparate, dissimilar, divergent, unalike, unlike Near Antonyms alike, analogous, like, similar; equivalent, identical, same; synonymous Antonyms noncontradictory

something that is as different as possible from something else no matter what I say, you insist on the opposite Synonyms antipode, antithesis, contrary, counter, negative, obverse, reverse Related Words negation; antonym; counterpoint; converse, inverse, mirror image Near Antonyms synonym; analogue (or analog), counterpart; carbon copy, copy, duplicate, replica