Incapable of associating or blending or of being associated or blended because of disharmony, incongruity, or antagonism: incompatible views on religion.
Impossible to be held simultaneously by one person: the incompatible offices of prosecutor and judge.
Logic That cannot be simultaneously true; mutually exclusive.
Medicine
Producing an undesirable effect when used in combination with a particular substance: a medication that is incompatible with alcohol.
Not immunologically compatible: incompatible blood types.
noun
One that is incompatible.
derivatives
ińcom·pat́i·ble·ness
noun
ińcom·pat́i·bly
adverb
The American Heritage® Dictionary of the English Language, Fourth Edition