pathetic; broad-minded, liberal, good-hearted, good, kind, fair, reasonable, just, equitable, square, evenhanded; thoughtful, thinking, enlightened, open.
2. unprejudiced, unbiased, unwarped, unbigoted, unjaundiced, unswayed; dispassionate, broad, impersonal, impartial, disinterested.
open-mouthed, adj. 1. gaping, agape, wonder-struck, thunderstruck, dumfounded, stupefied; astounded, Inf. flabbergasted, astonished, surprised, amazed, startled, shocked; awestruck, spellbound.
2. greedy, rapacious, voracious, edacious; ravenous, famished, starving.
3. clamorous, uproarious, clamant, blustering, noisy; vociferous, loud, vocal; brassy, bold, brash, mouthy, loud-mouthed; unruly, boisterous, obstreperous.
operable, adj. in working condition, usable, serviceable, functional, operational; practicable, workable, feasible; possible, achievable, attainable,
operate, v. 1. work, perform, act, go, Sl. fly; function, serve, Sl. do one's thing or stuff.
2. run, manage, handle, manipulate, conduct, maneuver, make go; use, utilize, employ, practice, ply.
3. effect, effectuate, engineer, bring about, produce; induce, elicit, evoke, call forth, summon up.
operation, n. 1. employment, utilization, effectuation, manipulation, handling; performance, execution, discharge, dispatch, enactment; doing, exercise, practice; action, activity, Rare, operance, Rare, operancy.
2. agency, influence, power, potency; effect, result, consequence.
3. business transaction, commercial transaction, Inf. deal, Inf. business deal, Stock Exchange, turn, bargain, agreement; undertaking, venture, project, enterprise, task.
operative, n. 1. workman, workingman, worker, laborer, Sl. working stiff; industrial or factory worker, factory hand, blue-collar worker, proletarian; artisan, artificer, craftsman, handicraftsman; skilled laborer, mechanic.
2. detective, private detective, investigator, private investigator, sleuth, plainclothesman; All Sl. dick, gumshoe, flatfoot, eye, private eye, fly ball, fly bull.
3. secret agent, undercover agent, undercover man, espionage agent, intelligence agent; spy, counterspy, double agent.
-adj. 4. active, functional, operational, Inf. go; functioning, performing, operating, acting, working, running, going; engaged, in operation, in action, in play.
5. influential, instrumental, forcible, forceful, potent, powerful; employed, utilized, in force, in effect.
6. effective, effectual, efficacious, efficient; serviceable, adequate, sufficient, Inf. good enough; useful, advantageous, beneficial, helpful.
operator, n. 1. doer, performer, actor, executor, operative, operant; worker, handler, manipulator, practitioner.
2. telephone operator, switchboard operator, PBX operator, Obs. central.
3. Slang, maneuverer, machinator, Inf. finagler, Inf. wire-puller, Sl. wheeler-dealer, Sl. big-time operator; Sl. slicker, Sl. smoothie, Sl. smooth-talker, Sl. fast-talker.
operose, adj. 1. industrious, hard-working, diligent, assiduous, sedulous, studious, intent; plodding, unflagging, indefatigable, tireless, undrooping, unsleeping; persistent, pertinacious, constant, earnest, patient, painstaking, exacting; workmanlike, businesslike, enterprising, hustling, on the go, on the move; at work, in harness, hard at it, astir, active, up and doing, 2. laborious, arduous, toilsome, heavy, strenuous; troublesome, trying, hard, difficult, burdensome, onerous; uphill, full of obstacles, herculean, Inf. wicked, Inf. rough, Inf. tough, Inf. nasty; tiring, wearying, wearisome, fatiguing, exhausting, taxing; rigorous, not easy, tedious, unmitigating, endless, tiresome, boring.