1. in a manner that causes confusion, embarrassment, or unease; in a way that disturbs one's composure
The witness stared at the lawyer disconcertingly throughout the entire testimony.
A testemunha olhou para o advogado de forma desconcertante durante todo o depoimento.
2. in an unexpectedly or disturbingly candid or direct way
She smiled disconcertingly at the inappropriate joke.
Ela sorriu de forma desconcertante para a piada inadequada.