compunction

[kəmˈpəNG(k)SH(ə)n]NOUNa feeling of guilt or moral scruple that prevents or follows the doing of something bad.”spend the money without compunction” · [more]synonyms:scruples · misgivings · qualms · worries · unease · uneasiness · hesitation · hesitancy · doubts · reluctance · reservations · guilt · feelings of guilt · guilty conscience · pangs/twinges of conscience · remorse · regret · contrition · contriteness · self-reproach · repentance · penitence

CITE: http://www.freedictionary.com