Definitions

1. adjective

lacking the stuffiness or formal reserve that is often associated with wealth or social class, especially in a way that is considered more friendly or approachable.

“The small cafe was unstuffy, with its eclectic decor and friendly staff making everyone feel welcome.”

2. adjective

unconstrained by traditional or formal rules or conventions, especially in a way that is considered more informal or casual.

“The new restaurant’s unstuffy atmosphere made it a popular choice for families with young children.”