untrustworthy
I
adjective
capricious, changeable, conniving, deceitful, deceptive, dishonest, dishonorable, disloyal, double-dealing, faithless, fallible, false, fickle, fly-by-night, fraudulent, frivolous, illusive, inconstant, insecure, insidious, irresponsible, mercurial, perfidious, precarious, questionable, shifty, slippery, tergiversating, treacherous, two-faced, unauthenticated, uncertain, undependable, unfaithful, unreliable, unsafe, unsound, unstable, unsteadfast, untrue, unworthy of confidence, unworthy of trust, variable, wavering
II
index
dangerous, dishonest, disingenuous, disreputable, faithless, fallible, false (disloyal), fraudulent, inaccurate, insecure, irresponsible, machiavellian, perfidious, precarious, recreant, sinister, suspicious (distrustful), uncertain (questionable), undependable, unreliable, unsound (not strong), unsustainable, untrue
Burton's Legal Thesaurus.
William C. Burton.
2006