THESAURUS
remorseful
anxious, apologetic, ashamed, bad, bitter, compunctious, conscience-smitten, conscience-stricken, contrite, embarrassed, full of remorse, guilty, humbled, humiliated, mortified, penitent, penitential, regretful, repentant, repining, rueful, self-accusing, self-condemning, self-convicting, self-debasing, self-flagellating, self-humiliating, self-punishing, self-reproaching, shamed, shamefaced, shamefast, shameful, sorrowful, sorry, unhappy about, wistful, woeful