1. (

• incompatibility ,
• mutual_exclusiveness ,
• inconsistency ,
• repugnance

) the relation between propositions that cannot both be true at the same time ;

2. (

• incompatibility

) (immunology) the degree to which the body's immune system will try to reject foreign material (as transfused blood or transplanted tissue) ;

3. (

• incompatibility

) the quality of being unable to exist or work in congenial combination ;