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crass
Pronounced :/kras/
adjective
lacking sensitivity, refinement, or intelligence.
"the crass assumptions that men make about women"
synonyms: stupid, insensitive, mindless, thoughtless, ignorant, witless, oafish, boorish, asinine, coarse, gross, graceless, tasteless, tactless, clumsy, heavy-handed, blundering
"crass assumptions about women"