adjective, verb · smooth and diplomatic in social interactions to avoid conflict

他为人处世非常圆滑，从不轻易得罪人。

adjective · smooth and rounded in shape or texture, without rough edges or friction

鹅卵石被水流冲刷得十分圆滑。

adjective · evasive and insincere, often to avoid taking a stand or responsibility

他的回答非常圆滑，巧妙地避开了所有敏感问题。