reprehensible - Describing behavior, actions, or conduct that is morally wrong and worthy of disapproval or condemnation.
Though he told people not to repeat it, it was reprehensible for him to spread rumors about his colleague, knowing it would damage her reputation.
inhibitions - A feeling of self-consciousness or restraint that prevents someone from acting freely; a psychological or social barrier that limits a person’s behavior or expressions.
His inhibitions kept him from speaking up during the meeting, even though he had great ideas.