All 5 Uses

supercilious
in
This Side of Paradise
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Somehow the quiet Humbird, and Sloane, with his impatient superciliousness, were the centre.†
Chpt 1.2 *
Your last, that dissertation on architecture, was perfectly awful— so "highbrow" that I picture you living in an intellectual and emotional vacuum; and beware of trying to classify people too definitely into types; you will find that all through their youth they will persist annoyingly in jumping from class to class, and by pasting a supercilious label on every one you meet you are merely packing a Jack-in-the-box that will spring up and leer at you when you begin to come into really antagonistic contact with the world.†
Chpt 1.3

supercilious = arrogant
Amory finally prevailed, and Alec agreed to accept his face value in the presence of others if he was allowed rest periods when they were alone; so Amory "ran it out" at a great rate, bringing the most eccentric characters to dinner, wild-eyed grad students, preceptors with strange theories of God and government, to the cynical amazement of the supercilious Cottage Club.†
Chpt 1.4
The Supercilious Sacrifice†
Chpt 2.4
Sacrifice by its very nature was arrogant and impersonal; sacrifice should be eternally supercilious.†
Chpt 2.4

Definitions:

(1) (supercilious)
arrogant (acting as if better, more important, and superior in ideas than others)
(2) (meaning too rare to warrant focus)