شدید (صفت)
hard, grievous, strenuous, drastic, keen, tough, exquisite, slashing, sopping, chronic, high-wrought, severe, rugged, stalwart, boisterous, forcible, intense, violent, intensive, vigorous, diametric, diametrical, inclement, incontrollable, rigorous, sthenic
نیرومند (صفت)
mighty, puissant, main, solid, strong, orotund, formidable, stout, rugged, brawny, nervy, powerful, potent, valiant, vigorous, hale, prolific, red-blooded, robustious, sinewy, sthenic
وخیم (صفت)
serious, critical, fatal, dire, crucial, tense, sthenic
تندکار (صفت)
sthenic