Convinced of one’s own righteousness or moral superiority, esp. in smug, intolerant, or hypocritical way; characterized by such an attitude. Also as…

Strict in matters of doctrine and ritual observance but lacking in charity or inner devotion; formalistic; laying great stress on external observance…

Convinced of one's own moral perfection; not afraid of divine judgement; self-righteous. Obsolete.

Of male persons: Trim, neat, spruce, smart; in later use, having a self-satisfied, conceited, or consciously respectable air.

Hypocritically virtuous; self-righteous; sanctimonious.

With negative connotations: characterized by affected or hypocritical moral rectitude or superiority; self-righteous, sanctimonious.