15-Letter Words Containing: IBIL

• a lack of physical flexibility

• the quality of being rigid and rigorously severe

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

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

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

• unworthiness by virtue of lacking higher values

• the property of being able to occupy less space

• the quality of being reproducible

• the quality of not being accessible