Prim (Adjective)

Exaggeratedly proper; "my straitlaced Aunt Anna doesn't approve of my miniskirts".

All adjective clusters.

My straitlaced Aunt Anna wouldn't be caught dead in a low-cut top, she's far too prim for that sort of thing.
The school's prim headmistress insisted on uniforms with knee-length skirts and long sleeves.
Her prim demeanor made her appear much older than her actual age.
The actress's prim characters in the period dramas had earned her a reputation for being old-fashioned.
In her prim world, anything considered risqué or immoral was strictly forbidden.

Affectedly dainty or refined.

All adjective clusters.

She sat with a prim expression on her face, trying not to smile at the silly joke.
The prim and proper etiquette teacher insisted that students use their napkins to wipe their mouths.
Her prim demeanor made her seem out of place at the casual gathering, where everyone else was dressed in jeans and t-shirts.
The prim little old lady walked down the street with her nose held high, looking disapproving of everything around her.
The actress's prim performance in the period drama was praised by critics for its authenticity and attention to detail.