Supercilious (adjective) — behaving or looking as though one thinks one is superior to others; arrogant.
Example: Tom Buchanan’s supercilious manner made everyone around him feel small and inferior.

Fractious (adjective) — irritable and quarrelsome; difficult to control.
Example: Tom’s fractious nature often led to heated arguments during dinner.

Feigned (adjective) — simulated or pretended; insincere.
Example: Nick greeted everyone with feigned enthusiasm, hiding his discomfort.

Levity (noun) — humor or lack of seriousness, especially when inappropriate.
Example: His attempt at levity during the tense conversation only made things worse.

Reproach (noun) — an expression of disapproval or disappointment.
Example: Daisy’s voice carried a note of reproach when she spoke to Gatsby about the past.

Conscientious (adjective) — wishing to do what is right or to do one’s work thoroughly.
Example: Nick prided himself on being conscientious and honest in a world full of deceit.

Incredulous (adjective) — unwilling or unable to believe something; skeptical.
Example: Daisy gave an incredulous laugh when Gatsby revealed how wealthy he had become.

Complacent (adjective) — self-satisfied and unaware of possible dangers or defects.
Example: The guests at Gatsby’s parties were complacent, caring little about the chaos around them.

Intimation (noun) — a hint or subtle suggestion.
Example: There was an intimation in her tone that she knew more than she was saying.

Contiguous (adjective) — sharing a common border; adjacent.
Example: The Valley of Ashes lay contiguous to the railroad tracks that led to New York.

Interpose (verb) — to place or insert between one thing and another; to intervene.
Example: Nick tried to interpose himself between Tom and Gatsby before the argument escalated.

Apathetic (adjective) — showing no interest or concern.
Example: The mechanic’s wife gave an apathetic glance at the passing cars.

Languid (adjective) — weak or faint; lacking energy or spirit.
Example: Daisy’s languid movements gave her an air of effortless grace.

Strident (adjective) — loud and harsh; grating.
Example: Myrtle’s strident laughter filled the small New York apartment.

Deft (adjective) — skillful and quick in one’s movements.
Example: With a deft motion, Gatsby adjusted his tie before greeting his guests.

Gaudy (adjective) — extravagantly bright or showy, typically tasteless.
Example: The gaudy decorations at Gatsby’s mansion dazzled first-time visitors.

Permeate (verb) — to spread throughout; to fill.
Example: The scent of champagne seemed to permeate the summer night air.

Innuendo (noun) — an indirect or subtle reference, often suggestive or disparaging.
Example: The guests exchanged innuendos about Gatsby’s mysterious past.

Vehement (adjective) — showing strong feeling; passionate or intense.
Example: Tom made a vehement declaration about defending his marriage.

Cordial (adjective) — warm and friendly.
Example: Gatsby greeted everyone with a cordial smile, masking his nervousness.

Corpulent (adjective) — fat; having a large, bulky body.
Example: A corpulent man waved at Gatsby from across the pool.

Jaunty (adjective) — lively, cheerful, and self-confident.
Example: The jaunty tunes from the orchestra set a festive tone at the party.

Raja (noun) — an Indian king or prince.
Example: One of Gatsby’s guests claimed to have dined with a raja in Bombay.

Nebulous (adjective) — hazy, vague, or ill-defined.
Example: Gatsby’s dream of the future was as nebulous as the green light across the bay.

Laudable (adjective) — deserving praise and commendation.
Example: Gatsby’s determination to rise above his past was laudable, though misguided.

Insidious (adjective) — proceeding subtly but with harmful effects.
Example: The insidious charm of wealth lured them into moral decay.

Ineffable (adjective) — too great or extreme to be expressed in words.
Example: Gatsby felt an ineffable joy when Daisy first stepped into his mansion.

Turgid (adjective) — swollen or pompous in style or language.
Example: His turgid speeches about success masked his deep insecurity.

Debauchery (noun) — excessive indulgence in sensual pleasures.
Example: The parties were nights of pure debauchery, fueled by music and gin.

Redolent (adjective) — strongly reminiscent or suggestive of something; fragrant.
Example: The summer air was redolent of roses and long-forgotten memories.