Untrustworthy

[ʌn'trʌs(t)wɜːðɪ] or [ʌn'trʌstwɝði]

Definition

(adj.) not worthy of trust or belief; 'an untrustworthy person' .

Inputed by Hilary--From WordNet

Synonyms and Synonymous

a. Unreliable, deceitful, treacherous, rotten, not to be depended on.

Editor: Sallust