noun (plural antitheses /-ˌsēz/)
- (in Hegelian philosophy) the negation of the thesis as the second stage in the process of dialectical reasoning. Compare with synthesis.
late Middle English (originally denoting the substitution of one grammatical case for another): from late Latin, from Greek antitithenai 'set against', from anti 'against' + tithenai 'to place'. The earliest current sense, denoting a rhetorical or literary device, dates from the early 16th century