conscience-stricken
adjective
• made uneasy by a guilty conscience.
• "she was still conscience-stricken over her outburst"
Similar:
guilt-ridden,
troubled,
disturbed,
remorseful,
ashamed,
shamefaced,
apologetic,
sorry,
chastened,
contrite,
guilty,
full of regret,
regretful,
rueful,
repentant,
penitent,
self-reproachful,
abashed,
sheepish,
compunctious,