[1] : The Collaborative International Dictionary of English v.0.48

unreliable \un`reli"able\, a.
   not reliable; untrustworthy. see reliable. --
   un`reli"ableness, n.
   1913 webster

         alcibiades . . . was too unsteady, and according to
         mr. coleridge's coinage "unreliable;" or perhaps, in
         more correct english, too "unrelyuponable." --de
                                                  quincey.
   1913 webster
see also:
reliable un`reli"ableness 

[2] : WordNet (r) 2.0

unreliable
     adj 1: liable to be erroneous or misleading; "an undependable
            generalization" syn: undependable
     2: not to be trusted syn: undependable
     3: not worthy of reliance or trust; "in the early 1950s
        computers were large and expensive and unreliable"; "an
        undependable assistant" syn: undependable ant: reliable,
         reliable
     4: dangerously unstable and unpredictable; "treacherous winding
        roads"; "an unreliable trestle" syn: treacherous
     5: lacking a sense of responsibility
see also:
undependable reliable treacherous 

[3] : Moby Thesaurus II by Grady Ward, 1.0

134 moby thesaurus words for "unreliable":
   adrift, afloat, alternating, amorphous, capricious, changeable,
   changeful, coquettish, dangerous, desultory, deviable,
   disreputable, dizzy, doubtful, dubious, eccentric, erratic,
   faddish, faithless, false, falsehearted, fast and loose, fickle,
   fitful, flickering, flighty, flimsy, flirtatious, flitting,
   fluctuating, fly-by-night, freakish, garbled, giddy, hazardous,
   impetuous, impulsive, inaccurate, inauthentic, inconsistent,
   inconstant, indecisive, inexact, infirm, insecure, insubstantial,
   irregular, irresolute, irresponsible, light, mazy, mercurial,
   miscited, misquoted, misreported, misstated, moody, perfidious,
   perilous, precarious, provisional, questionable, quicksilver,
   rambling, restless, risky, rocky, roving, scatterbrained, shaky,
   shapeless, shifting, shifty, shuffling, skittish, slick, slippery,
   spasmodic, spineless, spurious, temporary, tentative, ticklish,
   tottery, toying, treacherous, tricky, trustless, unaccountable,
   unassured, unauthentic, unauthoritative, uncertain, uncontrolled,
   undependable, undisciplined, unfaithful, unfaithworthy, unfixed,
   unfounded, unhealthy, unpredictable, unrestrained, unsafe,
   unsettled, unsolid, unsound, unstable, unstable as water, unstaid,
   unsteadfast, unsteady, unsubstantial, unsure, untrue,
   untrustworthy, untrusty, vacillating, vagrant, variable, versatile,
   vicissitudinary, vicissitudinous, volatile, wandering, wanton,
   wavering, wavery, wavy, wayward, weak, whimsical, wishy-washy,
   workaday

Unreliable >> U Words
Unreliable, definition of term: Unreliable
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