Open English Wordnet
Nouns
(n)reverse, contrary, oppositea relation of direct opposition“we thought Sue was older than Bill but just the reverse was true” (n)contraryexact opposition“public opinion to the contrary — that he is not guilty” (n)contrarya logical relation such that two propositions are contraries if both cannot be true but both can be false Adjectives
(s)contraryvery opposed in nature or character or purpose“acts contrary to our code of ethics”,
“the facts point to a contrary conclusion” (s)contraryof words or propositions so related that both cannot be true but both may be false“‘hot’ and ‘cold’ are contrary terms” (s)contrary, obstinate, perverse, waywardresistant to guidance or discipline“Mary, Mary, quite contrary”,
“an obstinate child with a violent temper”,
“a perverse mood”,
“wayward behavior” (s)adverse, contraryin an opposing direction“adverse currents”,
“a contrary wind”