Definition of subcontrariety in US English:

subcontrariety

noun

Logic
  • The relation between subcontrary propositions.

Origin

Early 17th century; earliest use found in George Wither (1588–1667), poet. From sub- + contrariety, after subcontrary and post-classical Latin subcontrarietas.

Pronunciation

subcontrariety

/ˌsʌbkɒntrəˈrʌɪɪti/