| Bastardize 1. (v. t.) To make or prove to be a bastard; to stigmatize as a bastard; to declare or decide legally to be illegitimate. 2. (v. t.) To beget out of wedlock. Thesaurus Entries adulterate, brutalize, contaminate, corrupt, cut, debase, debauch, demoralize, denaturalize, denature, deprave, dilute, doctor, doctor up, fortify, lace, pervert, pollute, spike, tamper with, vitiate, warp, water, water down |