1540s, from Middle French crasse (16c.), from Latin crassus "solid, thick, fat; dense." The literal sense always has been rare in English; meaning "grossly stupid" is recorded from 1650s, from French. Middle English had cras (adj.) "slow, sluggish, tardy" (mid-15c.), also crassitude "thickness." Related: Crassly; crassness.
例文
1. The government has behaved with crass insensitivity.
この政府は愚かで無感覚である。
2.the crass questions all disabled people get asked
障害者全員が直面する愚かで思いやりに欠ける質問
3. Crass materialism causes people to forget spiritual values.
極端唯物主義は精神的価値を忘れさせる.
4.The family has been described variously as crass 、bigoted、racist and plain boring.