|in+ noun
Etymology: French incompatibilité, from Middle French, from incompatible
1. : the quality or state of being incompatible : inability to function or exist in the presence of something else: as
a. : inability to exist in peaceful harmony ; especially : lack of adjustment in marriage
b. : a relation between dignities or public offices such that proper and faithful performance of the duties and exercise of the powers of one is inconsistent with such performance and exercise in another on the part of the same individual
c.
(1) : lack of interfertility between two plants following pollination (as from characteristics of the pollen)
(2) : inability of stock and scion to unite successfully in a graft
d. : the exclusion in igneous rock crystallization under conditions of equilibrium of one member of a pair of minerals by the presence of the other member
2. incompatibilities plural : mutually antagonistic things or qualities : incompatibles
the inherent incompatibilities of dog and cat