Antithesis

an-tith′e-sis, n. a figure in which thoughts or words are set in contrast: a counter-thesis, counter-proposition: opposition: the contrast:— pl. Antith′esēs .— n. Ant′ithet ( rare ), an instance of antithesis.— adjs. Antithet′ic , -al .— adv. Antithet′ically . [Gr.; anti , against, tithēmi , to place.]