きつい (translations)→ arduous baleful bitter broad demanding explicit fierce good grave hard nasty painful palpable sharp sharply sharpness shattering steep strong stubborn tightly tough
鋭い (translations)→ acuity acute astute brilliant crisp delicate fine intense peppery perceptive piercing piping quick slashing unrelenting well-honed
辛辣な (translations)→ acerbic acrimonious biting cutting mercilessly mordant piquant relentless tacky ungenerous vitriolic waspish
痛烈な (translations)→ dazzling illuminating terrible
破滅的な (translations)→ destructive fateful
