Words similar to regretful

Example sentences for: regretful

How can you use “regretful” in a sentence? Here are some example sentences to help you improve your vocabulary:

Most also pay lip service to the idea that murder is not the solution to political problems, generally by making the hero a regretful killer who wishes he could just put down the gun.
If the money goes bad, you simply return it with the appropriate regretful noises.
My guess is a regretful no.
Why, like a regretful mother, unchained ghost, do I hover over old photos when I'm home for Christmas or Thanksgiving, as if I'd all along been living
One is of tone--Alter is calm, respectful, and regretful.