prim

This word carries a sense of rigid correctness that often feels unnatural or restrictive. It suggests a person who is terrified of making a social gaffe or appearing uncouth, resulting in a posture and demeanor that is clipped and meticulously tidy. It is frequently associated with a perceived lack of warmth or spontaneity.

While similar to words like neat or tidy, prim implies a moral or social judgment. It evokes the image of someone who would be shocked by a misplaced crumb or a slightly loud laugh, making it a term often used to describe an old-fashioned or overly conservative personality.