Entry Word: adulterate

Function: verb

Meaning: to alter (something) for the worse with the addition of foreign or lower-grade substances <the company was fined for adulterating its “all beef” frankfurters with cereal>

Synonyms dilute, thin, water (down), weaken

Related Words befoul, contaminate, corrupt, defile, dirty, foul, infect, poison, pollute, soil, spoil, sully, taint; cheapen, debase, degrade; manipulate, misrepresent, tamper (with); counterfeit, fake, falsify, fudge; doctor, spike

Near Antonyms fertilize, lard; augment, supplement; clarify, clean, cleanse, distill, filter, flush, leach, pasteurize, purge, purify, refine; better, enhance, improve

Antonyms enrich, fortify, richen, strengthen