undependable Antonyms

dependable worthy of trust upright unimpeachable unfailing unerring truthful trusty trustworthy true tried tested virtuous undeviating fail-safe as good as one's word as clean as a hound's tooth ensured tried and true time tested honourable good as one's word clean as a hound's tooth congregant unswerving sure strong infallible ineluctable incorruptible honest faithful ethical credible constant certain accurate loyal predictable principled steady steadfast staunch stable sound solid responsible reputable reliable regular