unreliable

Main Entry:
perfidious [per-fid-ee-uhs]
Part of Speech: adjective
Definition: treacherous
Synonyms: betraying, deceitful, deceptive, double-crossing, double-dealing, faithless, false, insidious, misleading, recreant, shifty, slick*, snake in the grass, traitorous, two-faced, two-timing, undependable, unfaithful, unloyal, unreliable, untrustworthy
Main Entry: questionable
Part of Speech: adjective
Definition: doubtful, uncertain
Synonyms: ambiguous, apocryphal, arguable, contingent, controversial, controvertible, cryptic, debatable, disputable, dubious, dubitable, enigmatic, equivocal, fishy, hard to believe, hypothetical, iffy, indecisive, indefinite, indeterminate, moot, mysterious, obscure, occult, open to doubt, open to question, oracular, paradoxical, problematic, problematical, provisional, shady, suspect, suspicious, unconfirmed, undefined, under advisement, under examination, unproven, unreliable, unsettled, vague
Notes: questionable means open to doubt, disagreement, or challenge - or of dubious morality, honesty, or respectability; questioning (adjective) means showing curiosity or inquiring about - or (noun) an inquiry or interrogation
Antonyms: certain, definite, indisputable, proven, sure, undoubted, unquestionable
Main Entry: rocky
Part of Speech: adjective
Definition: doubtful, undependable
Synonyms: dizzy, ill, rickety, shaky, sick, sickly, staggering, ticklish, tottering, tricky, uncertain, unreliable, unstable, unsteady, unwell, weak, wobbly
Antonyms: dependable, happy, healthy
Main Entry: shaky
Part of Speech: adjective
Definition: doubtful
Synonyms: dubious, indecisive, not dependable, not reliable, precarious, problematic, questionable, suspect, uncertain, unclear, undependable, unreliable, unsettled, unsound, unsteady, unsupported, unsure
Antonyms: certain, firm, indubious, sure
Main Entry: skittish
Part of Speech: adjective
Definition: very nervous
Synonyms: agitable, alarmable, capricious, changeable, combustible, dizzy*, edgy, excitable, excited, fearful, fickle, fidgety, flighty, frivolous, giddy, harebrained, high-strung, irresponsible, jumpy, lightheaded, lively, peppy, playful, restive, scatterbrained, sensitive, spirited, undependable, unreliable, volative, whimsical, zippy
Antonyms: calm, collected, easy-going, laid-back, unworried
Main Entry: sneaky
Part of Speech: adjective
Definition: underhanded, dishonest
Synonyms: base, contemptible, cowardly, deceitful, devious, disingenuous, double-dealing, duplicitous, furtive, guileful, indirect, low, malicious, mean, nasty, recreant, secretive, shifty, slippery, sly, sneaking, snide, stealthy, surreptitious, tricky, underhand, unreliable, unscrupulous, untrustworthy, yellow*
Antonyms: aboveboard, candid, forthright, frank, honest
Main Entry: temperamental
Part of Speech: adjective
Definition: angry most of the time; moody
Synonyms: capricious, changeable, cussed, easily upset, emotional, erratic, excitable, explosive, fickle, fiery, froward, headstrong, high-strung, hotheaded, hyper, hypersensitive, impatient, in bad mood, inconsistent, irritable, mean, mercurial, neurotic, ornery, passionate, petulant, sensitive, thin-skinned, ticklish, touchy, uncertain, undependable, unpredictable, unreliable, unstable, variable, volatile, willful
Antonyms: easygoing, happy, laid-back, peaceful, pleased
Main Entry: treacherous
Part of Speech: adjective
Definition: dishonest, disloyal
Synonyms: betraying, catchy, deceitful, deceptive, double-crossing, double-dealing, duplicitous, faithless, false, false-hearted, fly-by-night, insidious, misleading, perfidious, recreant, shifty, slick*, slippery*, snake in the grass, traitorous, treasonable, tricky, two-faced, two-timing, undependable, unfaithful, unloyal, unreliable, untrue, untrustworthy
Antonyms: forthright, honest, loyal, true
Main Entry: treacherous
Part of Speech: adjective
Definition: dangerous
Synonyms: alarming, chancy, deceptive, difficult, dissembled, faulty, hairy*, hazardous, icy*, insecure, jeopardous, menacing, misleading, ominous, perilous, precarious, risky, shaky, slippery, ticklish, tricky, undependable, unhealthy, unreliable, unsafe, unsound, unstable, wicked
Antonyms: harmless, untreacherous
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