Contrary
Part of speech: adjective
Definition: opposed in nature strongly dissimilar
Part of speech: adverb
Definition: Contrarily
Part of speech: noun
Definition: The opposite. One of a pair of propositions that cannot both be simultaneously true.
Example sentence: A return to first principles in a republic is sometimes caused by the simple virtues of one man. His good example has such an influence that the good men strive to imitate him, and the wicked are ashamed to lead a life so contrary to his example.
Antonymous
Part of speech: adjective
Definition: having an opposite or diametrically opposed meaningof, or being an antonym