noun

1. The opposite.

2. One of a pair of propositions that cannot both be simultaneously true, , though they may both be false.

Synonyms: witherward

verb

1. To oppose; to frustrate.

2. To impugn.

3. To contradict (someone or something).

adjective

1. Opposite; in an opposite direction; in opposition; adverse.

   “contrary winds”

2. Opposed; contradictory; inconsistent.

   “What may be "politically correct" could be contrary to the teachings of Jesus.”

3. Given to opposition; perverse; wayward.

   “a contrary disposition; a contrary child”

adverb

1. Contrarily