acrid, acute, adamant, adamantine, all-fired, animal, annoying, arduous, atrocious, austere, awesome, awful, bad, beamy, brutal, brute, brutish, burdensome, callous, chilly, coarse, cold-blooded, creepy, crude, cruel, cruelty, difficult, dire, direful, disagreeable, disastrous, dismal, distasteful, dour, dread, dreadful, dreary, edge, farouche, fearful, fearsome, ferocious, fierce, firm, formidable, frightening, frightful, ghastly, grave, grievous, grim, grisly, gruesome, hackly, haggard, hard, hard-boiled, hard-core, hardboiled, hardcore, harsh, hateful, heaviest, heavy, heavy-handed, heavyweight, hideous, horny, horrible, horrid, horrific, hot, hulking, incisive, inclement, infernal, inhuman, intricate, irksome, jocund, keen, keener, keenest, knotty, landed, logy, lurid, merciless, monumental, nasty, natural, nippy, nonhuman, outrageous, peppery, piercing, pitiless, poignant, pointed, ponderous, preternatural, pungent, raw, redoubtable, remorseless, rigid,
rigorous, rough, ruffian, rugged, ruthless, sanguinary, savage, savaged, scary, seamy, serious, severe, sharp, shocking, short, shrewd, shrill, smart, spooky, stark, steep, stern, sternly, sternness, stiff, stiffly, stodgy, strict, strictly, strident, stringent, strong, tasteless, terrible, terrific, tough, toughly, tremendous, truculent, tyrannous, uncivilized, uncouth, unfriendly, unmerciful, unpalatable, unpleasant, unrelenting, unspeakable, violent, weighty, wild, wildcat