すさまじい の訳語→ appalling awful awfulness badly brutal desperately distorting dreadful ferocious fierce frightful gigantic great harsh horrifying incredible intense large mean-spirited mighty oppressive pervade reckless sick terrible tremendous wicked
とんでもない の訳語→ big colossal crazy desperate egregiously extraordinary furious goddamn hell insane major miserable odd outlandish outrageous real really ridiculous sodding terrific unsocial very
信じがたい の訳語→ improbable