rue the day
live to regret
wear sackcloth and ashes
regretting
fear
guilt
apologize
sorry
remorse
compunction
self-reproach
regrettable
regrettableness
eat one's words
bewail
deplore
lament
bemoan
repine
whip the cat
regretful
too bad
not want to do that
regrettingly
regretfully
repent
ruesome
regretter
regret
shame
apology
pang of conscience
look back
sorriness
attrite
sayang
regretfulness
regretlessness
F
penitence
repentance
contrite
penance
desire
could have, would have, should have
lamentably
I'm afraid so
afterthink
obliviousness
oblivion
put behind one
pity
penitent
repentant
redemption fatigue
palliate
reforgive
forlet
repathologize
Canossa
carry the can
face the music
memory-hole
flip the script
explain
forgiving
seem like a good idea at the time
Ichabod
regrettably
apologetic
rue
no such luck
guilt trip
resipiscence
fault
guilt feelings
fashy
sackcloth and ashes
guilty conscience
daze
shock
eat humble pie
recallment
get over
remorsefulness
stupor
kick
beat up
condone
mix-up
agenbite
confusion
what has someone done
whipping boy