Contraries :: Contraries (n.) Propositions which directly and destructively contradict each other, but of which the falsehood of one does not establish the truth of the other..
Contrariety :: Contrariety (n.) The state or quality of being contrary; opposition; repugnance; disagreement; antagonism.
Contrariety :: Contrariety (n.) Something which is contrary to, or inconsistent with, something else; an inconsistency..
Subcontraries :: Subcontrary (a.) Denoting the relation of opposition between the particular affirmative and particular negative. Of these both may be true and only one can be false.