What is another word for "antithesis"?

Roget's Thesaurus (1911) lists these synonyms for "antithesis": academical, alliteration, alliterative, altiloquence, altiloquent, and, antithetical, artificial, artistic, bold, boldness, bombast, bombastic, breath, burn, chaste, classical, classicalism, classicism, command, concinnity, correct, declamation, declamatory, ease, easy, elegance, elegant, elevated, elevation, eloquence, eloquent, euphemism, euphemistic, euphonious, euphony, euphuism, euphuist, euphuistic, felicitous.