とんでもない (translations)→ absolutely big colossal crazy desperate dreadful egregiously extraordinary extremely furious goddamn hell insane large major mega miserable odd outrageous real really ridiculous severe shocking sodding terrible terrific unsocial very
奇矯な (translations)→ eccentric strange
奇抜な (translations)→ far-fetched ingenious quirky
突拍子もない (translations)→ absurd extravagant mad preposterous quixotic remote unexpected wild