attitudinarian means one who attitudinizes; one who postures or behaves in a stilted and pretentious manner. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
attitudinarian is pronounced /ˌætɪˌtjuːdɪˈnɛəɹi.ən/.
Why “attitudinarian” is a great word
ATTITUDINARIAN — [Noun] One who attitudinizes; a person who adopts artificial, affected attitudes or postures as a studied performance of self. From Italian *attitudine* ("posture, aptitude"), from Latin *aptitūdin-* (stem of *aptitūdō*, "fitness"), from *aptus* ("fitted") + *-tūdō* (noun-forming suffix), combined with the English suffix *-arian* (denoting a person). First attested 1745–55. Unlike a poseur, whose affectation is a singular, often shallow impersonation, or a doctrinaire, whose rigidity is one of belief, the attitudinarian is a systematic connoisseur of hollow forms. He is the orator whose gestures are rehearsed before a mirror, the salon guest holding a book they will never read, the solitary figure practicing pensive profiles against the dusk—a life spent polishing the mask until the face forgets its shape.
noun
- One who attitudinizes; one who postures or behaves in a stilted and pretentious manner.