- undependable
- adj1. unreliable, untrustworthy, untrusty, trustless; irresponsible, fly-by-night, dishonest, disreputable, untruthful; dubitable, doubtful, unauthentic, questionable, disputable, contestable, refutable, unconvincing; uncertain, unassured, inaccurate, implausible, untenable, unbelievable.2. inconstant, fickle, changeable, flighty, faddish; inconsistent, wishy-washy, indecisive, irresolute, erratic, labile; vacillating, wavering, fluctuating, mercurial, volatile; unpredictable, variable, vicissitudinous; impulsive, impetuous.3. unsound, unsafe, unsure, infirm, insecure; unsteady, unstable, unsolid, insubstantial, ungrounded; shaky, rickety, shifty, shifting, slippery; dangerous, perilous, hazardous, risky; treacherous, tottery, rocky, uncertain.
A Note on the Style of the synonym finder. 2014.