Having or showing a strong aversion or repugnance
Opposed in nature or character; antagonistic
Causing a feeling of antipathy; repugnant
Tending to contradict or oppose, contrarious.
That contradicts something, such as an argument.
That is diametrically opposed to something.
That is itself a contradiction.
Mutually exclusive.
Either of a pair of propositions, that cannot both be true or both be false.