The noun contrary has 3 senses (first 1 from tagged texts)
1. (3) reverse, contrary, opposite -- (a relation of direct opposition; "we thought Sue was older than Bill but just the reverse was true")
2. contrary -- (exact opposition; "public opinion to the contrary he is not guilty")
3. contrary -- (a logical relation such that two propositions are contraries if both cannot be true but both can be false)
Overview of adj contrary
The adj contrary has 4 senses (first 2 from tagged texts)
1. (5) contrary -- (very opposed in nature or character or purpose; "acts contrary to our code of ethics"; "the facts point to a contrary conclusion")
2. (1) contrary -- (of words or propositions so related that both cannot be true but both may be false; "`hot' and `cold' are contrary terms")
3. contrary, obstinate, perverse, wayward -- (resistant to guidance or discipline; "Mary Mary quite contrary"; "an obstinate child with a violent temper"; "a perverse mood"; "wayward behavior")
4. adverse, contrary -- (in an opposing direction; "adverse currents"; "a contrary wind")