Antonyms of adj untrustworthy

1 sense of untrustworthy

Sense 1
untrustworthy (vs. trustworthy), untrusty -- (not worthy of trust or belief; "an untrustworthy person")

trustworthy (vs. untrustworthy), trusty -- (worthy of trust or belief; "a trustworthy report"; "an experienced and trustworthy traveling companion")
        => authentic, reliable -- (conforming to fact and therefore worthy of belief; "an authentic account by an eyewitness"; "reliable information")
        => creditworthy, responsible -- (having an acceptable credit rating; "a responsible borrower")
        => dependable, honest, reliable, true (predicate) -- (worthy of being depended on; "a dependable worker"; "an honest working stiff"; "a reliable sourcSFLe of information"; "he was true to his word"; "I would be true for there are those who trust me")
        => fiducial -- (based on trust)
        => sure, trusted -- ((of persons) worthy of trust or confidence; "a sure (or trusted) friend")

Similarity of adj untrustworthy

1 sense of untrustworthy

Sense 1
untrustworthy (vs. trustworthy), untrusty -- (not worthy of trust or belief; "an untrustworthy person")
       => devious, shifty -- (characterized by insincerity or deceit; evasive; "a devious character"; "shifty eyes")
       => fly-by-night, shady -- ((of businesses and businessmen) unscrupulous; "a shady operation")
       => slippery, tricky -- (not to be trusted; "how extraordinarily slippery a liar the camera is"- James Agee)
          Also See-> dishonest#1, dishonorable#2; unfaithful#1; unreliable#2, undependable#1