Here's what rhymes with hydrophobicity.

Consider these alternatives

illite / right biocompatibility / ability palatability / ability biodegradability / stability titration / operation lithology / quality aglycone / known triangulations / relations stabilities / sensibilities digestibility / stability peroxidation / operation occlusal / refusal macromolecules / schools delocalization / organization periodicity / activity insolubility / solubility functionalization / relation