acrid, acute, adamant, adamantine, athletic, atrocious, austere, beefy, brawny, brogue, burly, business-like, businesslike, callous, certain, chilly, coarse, coherent, cohesive, confident, copper-bottomed, corpulent, crude, cruel, cruelty, dead, dense, dependable, doughty, dour, edge, fast, ferocious, fierce, firm, firmed, fixed, forceful, forte, grim, gutsy, hackly, had, hard, hard-boiled, hard-core, hardboiled, hardcore, hardy, harsh, heady, healthy, hearty, heavy, hefty, high, horny,
hot, incisive, inclement, indiscrete, inflexible, insistent, intense, inveterate, keen, keener, keenest, landed, leathery, lusty, massive, massy, nappy, nippy, obstinate, offish, peppery, persistent, pertinacious, piercing, poignant, pointed, portly, positive, potent, powerful, pungent, rank, raw, reliable, rigid, rigorous, robust, rooted, rugged, safe, sanguinary, sanguine, savage, savaged, secure, severe, sharp, short, shrewd, shrill, sinewy, solid, solid-state, sound, stable, stalwart, stanch, starchy, stare, stark, steadfast, steady, steep, sterling, stern, sternness, stiff, stout, strict, strident, stringent, strong, strong-willed, strongman, stubborn, sturdy, substantial, sure, sureness, swingeing, tenacious, tight, tough, truculent, trusty, tyrannous, uncouth, undoubted, unimpeachable, unquestionable, unrelenting, vehement, violent, virile, virtual, wiry, wrong-headed, wrongheaded