with (good) reason

with (good) reason

Having a sound, justifiable cause or purpose; because something has already been proven true or justifiable. Yes, it was I who denied the defendant's application, but with reason—none of his supporting documentation was from within the last six months, as stipulated on our department's website. Officers may only search a person's private belongings or possessions with good reason that can be proven to the courts. Yes, I'm suspicious, but with good reason—I've already caught her twice in the past.
See also: reason
Farlex Dictionary of Idioms.

with reason

For a ground or cause, justifiably, as in He turned down their offer, but with reason-he didn't want to move his family to a big city . [c. 1600]
See also: reason
The American Heritage® Dictionary of Idioms by Christine Ammer.

with reason

With good cause; justifiably.
See also: reason
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • with reason
  • for good reason
  • to the purpose
  • track with (something)
  • sit in judgement
  • sit in judgment of (someone or something)
  • sit in judgment on (someone)
  • sit in judgment on someone
  • his, your, etc. raison d'être
  • être