leery

leery
    adj 1: openly distrustful and unwilling to confide [syn:
           {leery}, {mistrustful}, {suspicious}, {untrusting},
           {wary}]
    

37 Moby Thesaurus words for "leery":
      Pyrrhonic, agnostic, cagey, careful, cautious, chary,
      disinclined to believe, disposed to doubt, distrustful, doubtful,
      doubting, dubious, from Missouri, guarded, hard of belief,
      impervious to persuasion, in doubt, inconvincible, incredulous,
      mistrustful, mistrusting, questioning, sceptical, scrupulous, shy,
      shy of belief, skeptical, suspecting, suspicious, uncertain,
      unconvincible, uncredulous, unpersuadable, unpersuasible,
      untrusting, unwilling to accept, wary