furtive
🇺🇸
/ˈfɜːrtɪv/
🇬🇧
/ˈfɜːtɪv/
acting in a way that shows you want to hide something or be unnoticed
He gave a furtive look around to make sure no one was watching.
他偷偷地四周看了看,以确保没有人在观看。