casually

Từ điển Oxford Advanced Learner 8th

cas·ual·ly BrE [ˈkæʒuəli] ; NAmE [ˈkæʒuəli] adverb
•‘What did he say about me?’ she asked as casually as she could.
•They chatted casually on the phone.
•dressed casually in jeans and T-shirt
Main entry: ↑casual_derived