stiff

stiff [adj1] hard, inflexible annealed, arthritic, benumbed, brittle, buckram, cemented, chilled, congealed, contracted, creaky, firm, fixed, frozen, graceless, hardened, immalleable, impliable, incompliant, indurate, inelastic, jelled, mechanical, numbed, ossified, petrified, refractory, resistant, rheumatic, rigid, set, solid, solidified, starched, starchy, stark, steely, stiff as a board*, stony, taut, tense, thick, thickened, tight, unbending, unflexible, ungraceful, unsupple, unyielding, wooden; concept 604 —Ant. flexible, pliable, pliant, soft stiff [adj2] formal, standoffish angular, artificial, austere, ceremonious, cold, constrained, forced, hardheaded, headstrong, inflexible, intractable, labored, mannered, obstinate, pertinacious, pompous, priggish, prim, punctilious, relentless, starchy, stilted, strong, stubborn, uneasy, ungainly, ungraceful, unnatural, unrelaxed, unrelenting, wooden; concept 401 —Ant. casual, graceful, informal stiff [adj3] difficult arduous, exacting, fatiguing, formidable, hard, laborious, tough, trying, uphill; concept 565 —Ant. easy stiff [adj4] extreme, severe austere, brisk, cruel, drastic, exact, excessive, exorbitant, extravagant, great, hard, harsh, heavy, immoderate, inexorable, inordinate, oppressive, pitiless, potent, powerful, rigorous, sharp, steep, strict, stringent, strong, towering, unconscionable, undue, vigorous; concepts 540,569 —Ant. calm, moderate, normal