nervous
US /ˈnɝː.vəs/
UK /ˈnɝː.vəs/

1.
easily agitated or alarmed; tending to be anxious
:
•
She felt nervous before her job interview.
•
He's always been a very nervous person.
2.
relating to or affecting the nerves
:
•
The drug has a direct effect on the nervous system.
•
She suffered from a nervous disorder.