a square peg (in a round hole)

idiomPart ofhole

a square peg (in a round hole) — idiom

1. A person who does not fit well in a particular situation or role.

1.idiom
Definition

A person who does not fit well in a particular situation or role.

Example

Aiden felt like a square peg in the corporate world.

Was she a square peg in the team from the start?