subcontrary

• POS: Adjective, Noun
• HYPHEN: sub=con=tra=ry

CIDE DICTIONARY

subcontrary, a. 

•  Contrary in an inferior degree.  [1913 Webster]
•  Having, or being in, a contrary order; -- said of a section of an oblique cone having a circular base made by a plane not parallel to the base, but so inclined to the axis that the section is a circle; applied also to two similar triangles when so placed as to have a common angle at the vertex, the opposite sides not being parallel.  Brande & C.  [1913 Webster]
•  Denoting the relation of opposition between the particular affirmative and particular negative. Of these both may be true and only one can be false.  [1913 Webster]

subcontrary, n. 

 A subcontrary proposition; a proposition inferior or contrary in a lower degree.  [1913 Webster]

OXFORD DICTIONARY

subcontrary, adj. & n. Logic
--adj. (of a proposition) incapable of being false at the same time as another.
--n. (pl. -ies) such a proposition.

Etymology

LL subcontrarius (as SUB-, CONTRARY), transl. Gk hupenantios

ROGET THESAURUS

subcontrary

Contraposition

N contraposition, opposition, polarity, inversion, opposite side, reverse, inverse, counterpart, antipodes, opposite poles, North and South, antonym, opposite (contrariety), opposite, reverse, inverse, converse, antipodal, subcontrary, fronting, facing, diametrically opposite, Northern, septentrional, Boreal, arctic, Southern, Austral, antarctic, over, over the way, over against, against, face to face, vis-a- vis, as poles asunder.