The opposite.
One of a pair of propositions that cannot both be simultaneously true, , though they may both be false.
To oppose; to frustrate.
To impugn.
To contradict (someone or something).
To do the opposite of (someone or something).
To act inconsistently or perversely; to act in opposition to.
To argue; to debate; to uphold an opposite opinion.
To be self-contradictory; to become reversed.
Opposite; in an opposite direction; in opposition; adverse.
Opposed; contradictory; inconsistent.
Given to opposition; perverse; wayward.
Contrarily