激しい (translations)→ acerbic acute agonies bitter brisk considerable crushed desperate fiercely great harsh heatedly heavily hot intemperate intense intensity manic passionate pitch pointed raucous severe slashing stormy terrible vehemence violent wrenching
激烈な (translations)→ tempestuous thundering
性急な (translations)→ improvident
熱烈な (translations)→ eager enormous feverish powerful serious vascular
猛烈な (translations)→ blazing extreme murderously offensive really so