quietinho

very quiet; nice and quiet

quiet still, quiet + inho diminutive; small or endearing
adjective · singular Rare #33,163
very quiet; nice and quiet Diminutive of “quieto.” Commonly used to mean “very quiet” or “keeping still/without making noise,” often in informal speech.
PO: As crianças ficaram quietinho durante o filme.
EN: The kids stayed very quiet during the movie.

Ele está quietinho.

He's being very quiet.

— Tropa de Elite (2007)

Todo mundo quietinho, abrindo os caixa.

Everyone's quiet, opening the cash registers.

— Cidade de Deus (2002)

Bem quietinho.

Very quietly.

— O Barco: Inferno no Mar (1981)

Vai ficar todo mundo quietinho aí!

Everyone’s going to stay nice and quiet there!

— Tropa de Elite (2007)

Fique quietinho, quieto.

Stay very still, very quiet.

— Amores Brutos (2000)

Fique quietinho.

Stay still.

— O Refúgio (2026)

Todo mundo quietinho aí!

Everyone, quiet down over there!

— Tropa de Elite (2007)