stiff

Synonyms

arduous, Augean, backbreaking, challenging, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), hard, heavy, herculean, killer, laborious, moiling, murderous, rigorous, rough, rugged, severe, strenuous, sweaty, tall, testing, toilsome, tough, uphill;

Antonyms

cheap, easy, effortless, facile, light, mindless, simple, soft, undemanding;

Near Antonyms

achievable, clear, doable, elementary, manageable, uncomplicated;

comforting, gentle, painless, relaxed, smooth, soothing;

accessible, friendly, idiotproof, user-friendly;

Related Words

abstract, abstruse, complex, complicated, elusive, hairy, insoluble, intricate, involved, knotty, opaque, problematic (also problematical), recondite, serious, spiny, stubborn, thorny, ticklish, tricky;

bruising, burdensome, exhausting, labored, onerous, oppressive, stressful, taxing, tight, trying;

annoying, bothersome, distressing, irksome, troublesome, vexatious;

grievous, grim, strict, stringent;

brutal, cruel, inhuman, painful;

Synonyms

being, bird, body, character, creature, customer, devil, duck, egg, face, fish, guy, head, human, human being, individual, life, man, mortal, party, person, personage, scout, sort, soul, specimen, thing, wight;

Near Antonyms

animal, beast, beastie, brute, critter;

Related Words

hominid, humanoid;

brother, fellow, fellowman, neighbor;

celebrity, personality, self, somebody;

Phrases

son of man;

Synonyms

beat, bilk, bleed, cheat, chisel, con, cozen, defraud, do, do in, fiddle, fleece, flimflam, gaff, gyp, hustle, mulct, pluck, ream, rip off, rook, screw, shake down, short, shortchange, skin, squeeze, stick, sting, swindle, victimize;

Related Words

extort, wrench, wrest, wring;

clip, gouge, nick, overcharge, soak;

exploit, milk;

deceive, dupe, fool, gull, trick;

rope (in);

betray, double-cross;

bamboozle, fast-talk;

Phrases

sell a bill of goods to, take for a ride, take to the cleaners;