detrimental, pernicious, dangerous, hazardous, deleterious; pestilential, pestiferous, noxious, malicious, malign, malignant, menacing; malevolent, maleficent, malefic, evil, wicked, damnable, accursed; venomous, virulent, toxic, morbific; fell, baneful, mephitic, viperous, poisonous, Archaic, venenose; deadly, lethal, fatal, mortal, mortiferous, Archaic. lethiferous. balk, v. 1. refuse, be reluctant or unwilling, hesitate, pause, demur, object; stop, halt, freeze.
2. shy from, fight shy of, shun, avoid, eschew, steer clear of; evade, elude, dodge, shrink from, recoil, draw back, blench, flinch.
3. hinder, prevent, Law. estop, stop; thwart, foil, frustrate, disappoint, baffle; check, retard, slow down, obstruct, impede; restrict, restrain, bar, block, throw a bodyblock.
-n. 4. hindrance, impediment, obstacle, obstruction, Archaic, remora, oppilation, interference, Law. estoppel; barrier, stop, stopper, block, barricade; curb, check, encumbrance, handicap; retardation, retardment, delay, postponement; restriction, stricture, limitation, inhibition.
5. disappointment, nonfulfillment, nonsuccess, failure, defeat; thwarting, foiling, setback, balky, adj. 1. stubborn, refractory, stiff-necked, restive, wayward, froward, willful, perverse, contrary; obstinate, mulish, pigheaded, bullheaded; recalcitrant, unbending, unyielding, inflexible; dogged, pertinacious, determined.
2. hesitant, disinclined, reluctant, unwilling, loath; constrained, restrained, reserved, timid, shy, backward, bashful.
3. unsure, doubtful, uncertain, indecisive, undecided, indefinite; wavering, hesitating, hovering, fluctuating, faltering; alternating, vacillating, oscillating, shilly-shallying; tardy, procrastinating, procrastina-tive; Inf. hot and cold; Inf. on-again, off-again. ball1, n. 1. sphere, globe, orb, globule, congloba-tion, drop, glomeration, conglomeration; marble, clew, knot, Sports SI. pill; ball game, baseball, football.
2. bullet, pellet, slug, Archaic, grapeshot, grape, shot, projectile, ammunition.
3. on the ball Slang, a. alert, awake, vital, stirring, astir, b. efficient, quick, adroit, able, competent, fit, qualified. ball2, n. dance, prom, Inf. hop; evening party, soiree, coming out party, debut; carnival, masquerade, ballad, n. song, folk song, broadside, ditty, carole, noel, barcarole, boat song, chantey, fado; poem, lay, Archaic, fit, narrative poem, doggerel poem, fable, fabliau; hymn, anthem, chant, canticle; serenade, love song; blues, blues song, ballast, n. 1. stabilizer, Aeron. sandbag, weight, packing, filling.
2. balance, equilibrium, equilibration, steadiness, steadfastness, stability; counterbalance, counteraction, counterpoise, equiponderance, countercheck, compensation.
-v. 3. balance, poise, equilibrate, equalize, Aeron. trim, level off; stabilize, steady, weight, weight down; counterbalance, counterpoise, offset, compensate, balloon, n. 1. aerostat, zeppelin, airship, dirigible, blimp, montgolfier, lighter-than-air craft.
-v. 2. inflate, swell, swell out, bloat, belly, puff out, blow up, pump up, tumefy; dilate, distend, overdistend, Obs. sufflate; expand, overexpand, stretch, stretch out, outstretch; spread, spread out, outspread; grow, wax, fill out, fatten.
3. increase, enlarge, make larger, make bigger; multiply, augment, supplement, add to; magnify, amplify, deepen, heighten.