unsuccessful

• POS: Adjective
• HYPHEN: un=suc=cess=ful

CIDE DICTIONARY

unsuccessful, a. 

 Not successful; not producing the desired event; not fortunate; meeting with, or resulting in, failure; unlucky; unhappy.  [1913 Webster]

OXFORD DICTIONARY

unsuccessful, adj. not successful.

Derivative

unsuccessfully adv. unsuccessfulness n.

THESAURUS

unsuccessful

abortive, balked, beaten, bootless, cursed, defeated, foiled, fruitless, frustrated, hapless, ineffective, ineffectual, inefficacious, luckless, sterile, unavailing, unfortunate, unfruitful, unlucky, unproductive, unprofitable, useless, vain, worthless

ROGET THESAURUS

unsuccessful

Failure

N failure, nonsuccess, nonfulfillment, dead failure, successlessness, abortion, miscarriage, brutum fulmen, labor in vain, no go, inefficacy, inefficaciousness, vain attempt, ineffectual attempt, abortive attempt, abortive efforts, flash in the pan, lame and impotent conclusion, frustration, slip 'twixt cup and lip, blunder, fault, omission, miss, oversight, slip, trip, stumble, claudication, footfall, false step, wrong step, faux pas, titubation, b_evue, faute, lurch, botchery, scrape, mess, fiasco, breakdown, flunk, mishap, split, collapse, smash, blow, explosion, repulse, rebuff, defeat, rout, overthrow, discomfiture, beating, drubbing, quietus, nonsuit, subjugation, checkmate, stalemate, fool's mate, fall, downfall, ruin, perdition, wreck, deathblow, bankruptcy, losing game, affaire flamb_ee, victim, bankrupt, flunker, flunky, unsuccessful, successless, failing, tripping, at fault, unfortunate, abortive, addle, stillborn, fruitless, bootless, ineffectual, ineffective, inconsequential, trifling, nugatory, inefficient, insufficient, unavailing, of no effect, aground, grounded, swamped, stranded, cast away, wrecked, foundered, capsized, shipwrecked, nonsuited, foiled, defeated, struck down, borne down, broken down, downtrodden, overborne, overwhelmed, all up with, ploughed, plowed, plucked, lost, undone, ruined, broken, bankrupt, played out, done up, done for, dead beat, ruined root and branch, flambe, knocked on the head, destroyed, frustrated, crossed, unhinged, disconcerted dashed, thrown off one's balance, thrown on one's back, thrown on one's beam ends, unhorsed, in a sorry plight, hard hit, stultified, befooled, dished, hoist on one's own petard, victimized, sacrificed, wide of the mark, out of one's reckoning, left in the lurch, thrown away, unattained, uncompleted, unsuccessfully, to little or no purpose, in vain, re infecta, the bubble has burst, the jig is up, the game is up, all is lost, the devil to pay, parturiunt montes, dies infaustus, tout est perdu hors l'honneur.