What is another word for "opposite"?

Roget's Thesaurus (1911) lists these synonyms for "opposite": about, action, against, although, anastrophe, and, antagonism, antagonistic, antagonize, antarctic, antipodal, antipodes, antonym, arctic, asunder, back, beat, before, block, boomerang, bottom, bounce, bound, capsize, cart, check, clash, coefficient, collision, compensate, compensation, conflict, conflicting, contraposition, contrariety, contrary, contravene, contrecoup, converse, counter.