| Contaminate 1. (v. t.) To soil, stain, pollute or corrupt by contact; to tarnish; to sully; to taint; to defile. 2. (a.) Contaminated; defiled; polluted; tainted. Thesaurus Entries activate, adulterate, alloy, bastardize, befoul, benasty, canker, charge, cheapen, coarsen, confound, corrupt, cut, debase, debauch, defile, deflower, degenerate, degrade, denaturalize, denature, deprave, desecrate, despoil, devalue, dilute, dirty, disease, distort, doctor, doctor up, fortify, foul, harm, infect, injure, irradiate, lace, mess, mess up, misuse, nasty, pervert, poison, pollute, prostitute, radiumize, ravage, ravish, rot, soil, spike, spoil, stain, sully, taint, tamper with, tarnish, twist, ulcerate, violate, vitiate, vulgarize, warp, water, water down |