stiffly
🇺🇸
/ˈstɪfli/
🇬🇧
/ˈstɪfli/
in a way that is not relaxed and seems formal
She greeted him stiffly, not wanting to appear too friendly.
in a way that is slow and not smooth
He stood up stiffly, his joints aching from the long hike.
in a way that is hard to move or bend
The door opened stiffly after being closed for so long.