Preposterous /prɪˈpɑːst(ə)rəs/ adj. 荒唐的、可笑的、不合常理的
Meaning: extremely unreasonable, stupid, or impossible to believe
1) pre- = before 在…之前(preview 预览)
2) Poster- = after/behind 在…后面(postpone 推迟, postwar 战后)
3) -ous = adjective suffix 形容词后缀
e.g. That idea is completely preposterous! 那主意完全荒唐可笑!
e.g. The amount of money they’re asking for is preposterous. 他们要的价钱太离谱了。