crass
/kræs; kræs/ adj
(-er, -est) (fml derog 文, 贬)
1 [attrib 作定语]
complete; very great; utter 完全的; 十足的; 彻头彻尾的
crass stupidity, ignorance, etc 极度的愚钝、 无知等.
2 very stupid; insensitive 愚不可及的; 感觉迟钝的
Don't talk to him: he's so crass. 别跟他费口舌了, 他太笨了.