shady

1 protected from the sun's rays a lovely shady spot in the park that was pleasantly cool Synonyms shaded, shadowed, shadowy, umbrageous Related Words canopied, covered, sheltered; cloudy; dark, darkened, darkish, darkling, darksome, dim, dimmed, dusky, gloomy, inky, moonless, murky, obscure, obscured, penumbral, pitch-black, pitch-dark, somber (or sombre), sunless Near Antonyms bedazzling, bright, brightened, brilliant, dazzling, effulgent, illuminated, illumined, incandescent, light, lit (or lighted), lucent, lucid, luminary, luminous; beaming, lambent, radiant, shining; lustrous Antonyms exposed, shadeless, sunny

2 given to or marked by cheating and deception a shady business deal Synonyms bent [chiefly British], crooked, deceptive, double-dealing, duplicitous, fast, fraudulent, guileful, rogue, dishonest, sharp, shifty, underhand, underhandedRelated Words unconscionable, unethical, unprincipled, unscrupulous; deceitful, deceiving, deluding, delusive, delusory, false; artful, beguiling, cagey (also cagy), crafty, cunning, foxy, slick, sly, subtle, wily; defrauding, devious, furtive, slippery, sneaking, sneaky, trickish, tricky; insidious, perfidious, treacherousNear Antonyms conscientious, decent, ethical, honorable, just, scrupulous, upright; forthright, straightforwardAntonyms aboveboard, honest, straight

3 giving good reason for being doubted, questioned, or challenged cited some shady statistics to back up his argument Synonyms debatable, disputable, dodgy [chiefly British], doubtable, dubious, dubitable, equivocal, fishy, problematic (also problematical), queer, questionable, doubtful, shaky, suspect, suspiciousRelated Words alleged, so-called, supposed; moot; ambiguous, open, unclear; uncertain, undecided, undetermined; far-fetched, flimsy, improbable, unlikely, weakNear Antonyms decisive, definitive; clear, obvious, open-and-shut, positiveAntonyms certain, hands-down, incontestable, indisputable, indubitable, questionless, sure, undeniable, undoubted, unproblematic, unquestionable

4 given to acting in secret and to concealing one's intentions shady characters hanging out in the park after nightfall Synonyms furtive, sneaky, shifty, slippery, sly, sneaking, stealthyRelated Words artful, crafty, cunning, devious, foxy, guileful, slick, wily; close, closemouthed, reticent, secretive; clandestine, covert, dark; deceitful, deceiving, deceptive, devious, duplicitous, trickish, tricky, underhand, underhanded; cheating, crooked, defrauding, dishonest, dissembling, double-dealing, knavish, two-faced; lying, mendacious, untrustworthy, untruthful; insidious, perfidious, serpentine, treacherousNear Antonyms aboveboard, forthright, plainspoken, straightforward; candid, direct, foursquare, frank, open, plain; honest, trustworthy, truthful

5 not respectable a courtesan who lived on the shady fringe of society Synonyms discreditable, disgraceful, dishonorable, ignominious, infamous, louche, notorious, opprobrious, disreputable, shameful, shoddy, shy, unrespectableRelated Words bad, criminal, immoral, seamy, sordid, unethical, unsavory, wicked; base, contemptible, despicable, detestable, dirty, low, mean, miserable, vile, wretched; black, evil, iniquitous, nefarious, rotten, sinful, unrighteous, vicious, villainous, wrong; blamable, blameworthy, censurable, inglorious, reprehensible; corrupt, debased, debauched, degenerate, depraved, dissolute, gamy (or gamey), libertine, loose, perverted, reprobateNear Antonyms decent, ethical, good, honest, just, moral, noble, principled, righteous, upright, upstanding; esteemed, prestigious, reputed, respected; authorized, legal, licensed, permissible, permitted; approved, endorsed (also indorsed), sanctioned; clean, correct, decorous, exemplary, proper, seemly; blameless, commendable, creditable, guiltlessAntonyms honorable, reputable, respectable