honest to a fault

honest to a fault

Honest to an extreme or excessive degree; more honest than is usual or necessary. Jim wouldn't even tell a white lie—he's honest to a fault. It can actually be a little bit irritating sometimes. The police sergeant is honest to a fault, following every regulation and guideline without question.
See also: fault, honest
Farlex Dictionary of Idioms.
See also:
  • make an honest buck
  • earn an honest buck
  • an honest buck
  • an honest broker
  • honest to God
  • honest to God/goodness
  • the honest truth
  • God's honest truth
  • TBQH
  • a crock