COARSEN Meaning of COARSEN in English v. 25B6; verbhands coarsened by work : ROUGHEN, toughen, harden. I had been coarsened by the army : DESENSITIZE, dehumanize; dull, deaden. soften, refine. Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012