#1 incompatible a. not compatible; "incompatible personalities"; "incompatible colors". wn
#2 incompatible a. [antagonistic] used especially of drugs or muscles that counteract or neutralize each other's effect. wn
#3 incompatible a. [uncongenial] not suitable to your tastes or needs; "the uncongenial roommates were always fighting"; "the task was uncongenial to one sensitive to rebuffs". wn
#4 incompatible a. incapable of being used with or connected to other devices or components without modification. wn
#5 incompatible s. [contrastive] of words so related that one contrasts with the other; "'rich' and 'hard-up' are contrastive terms". wn
vizzz