sorry
regrettableness
apology
apologize
apologetic
apologetically
sorriness
repine
apologization
afterthink
penitent
repentant
rue the day
regrettable
apologeticness
deprecatory
regretting
remorseful
with respect
eat humble pie
remorsefulness
apologeticism
fess up
own up
make a clean breast of
beg someone's pardon
non-apology
wear sackcloth and ashes
repent
eat one's words
lamentably
regretfully
could have, would have, should have
ochanee
unapologetic
forgiving
look back
condone
regrettingly
my apologies
I beg your pardon
attrition
remorsefully
excusatory
excuse
offcome
guilt
guilty conscience
plea
remorse