crassest (adjective) crass: coarse, insensitive
Sinonime: absolve, aerate, aerify,
atone, chasten, clarify,
clean, cleanse,
clear, decontaminate, deodorize, depurate, deterge, disinfect, edulcorate, elutriate,
exculpate,
exonerate, expiate,
filter, fumigate, lustrate, oxygenate, purge, rarify,
redeem, refine,
remit, sanctify, sanitize, shrive, sublimate, wash
Antonime: adulterate,
corrupt, dirty, pollute