adj. & n. Logic --adj. (of a proposition) incapable of being false at the same time as another. --n. (pl. -ies) such a proposition. [LL subcontrarius (as SUB-, CONTRARY), transl. Gk hupenantios]
SUBCONTRARY
Meaning of SUBCONTRARY in English
English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012