Synonyms of holier-than-thou

adjectiveHypocritically or self-righteously pious; sanctimonious; smugly morally superior.

• airy
• arrogantHaving excessive pride in oneself, often with contempt or disrespect for others.
• chesty informal
• authoritarian
• biggityConceited, uppity.
• big-headed slang
• blustery
• turgescent formalBecoming turgid or swollen.
• boastfulTending to boast or brag.
• lordly
• bombasticShowy in speech and given to using flowery or elaborate terms; grandiloquent; pompous.
• cockyOverly confident; arrogant and boastful.
• conceited
• disdainfulShowing contempt or scorn; having a pronounced lack of concern for others viewed as unworthy.
• domineeringOverbearing, dictatorial or authoritarian.
• egotistical
• entitled
• flauntingThat flaunts; showy or gaudy.
• full of oneselfEgotistical, believing oneself to be superior to others; preoccupied with one's own work, interests, point of view, etc.
• grandiose
• hanktyOverbearing; pompous.
• haughtyConveying in demeanour the assumption of superiority; disdainful, supercilious.
• high-handedUsing power or authority without proper consideration for the feelings or rights of others.
• high-hat colloquialDisdainful; haughty.
• high and mighty
• highfalutin colloquialSelf-important, pompous; arrogant or egotistical.
• hoity-toity colloquial
• hubristicOf or relating to hubris (“excessive arrogance or pride, or presumption”); hence, overly arrogant or proud, or...
• hubristicalHubristic.
• imperious
• inflated
• insolentRude.
• la-di-da
• ostentatious
• overbearingOverly bossy, domineering, arrogant, forceful, intense, or annoying.
• overweeningUnduly confident; (sometimes also) arrogant.
• pompousAffectedly grand, solemn or self-important.
• presumptuousMaking unwarranted presumptions or assumptions, often out of arrogance or excessive self-confidence, and thus exceeding...
• pretentious
• priggishLike a prig.
• puffed up
• sanctimoniousMaking a show of being morally better than others, especially hypocritically pious.
• self-importantHaving, or behaving as if having, too high an opinion of one's own importance.
• snobbish slangHaving the property of being a snob; arrogant and pretentious; smugly superior or dismissive of perceived inferiors.
• snooty slangHaughty, pompous, snobbish; inclined to turn up one's nose.
• snotty slang
• stout
• stuck up slang
• superciliousArrogantly superior; showing contemptuous indifference; haughty.
• thrasonicThrasonical.
• thrasonicalBoastful, bragging, vainglorious.
• toplofticalHaughty, hoity-toity, superior.
• toploftySelf-important, haughty.
• tumid
• turgid
• uppish
• uppityPresumptuous, above oneself, self-important; arrogant, snobbish, haughty.
• uppySynonym of uppity.
• upstageHaughty, aloof.
• vainOverly proud of oneself, especially concerning appearance; having a high opinion of one's own accomplishments with...
• buggish dialectal, obsoleteUppity.
• flatulent obsolete
• glorious obsoleteExcessively proud or boastful.
• haught obsoleteHaughty.
• haut obsolete
• orgulous archaic, literaryArrogant, haughty, proud.