remorse
noun
anguish, chagrin, compunction, concern, conscience, conscientia mala, contriteness, contrition, disquiet, feelings of guilt, grief, pangs of conscience, penitence, regret, regretfulness, remorsefulness, repentance, rue, self-accusation, self-condemnation, self-conviction, self-criticism, self-reproach, self-reproof, sorriness, sorrow
Burton's Legal Thesaurus.
William C. Burton.
2006