Meaning of “nervous” - Learner’s Dictionary

nervous

adjective uk us /ˈnɜːvəs/
WORRIED

B1 worried and anxious:

a nervous cough/laugh
She's very nervous about her driving test.
BODY [ always before noun ]

relating to the nerves in the body:

a nervous disorder

(Definition of “nervous” from the Cambridge Learner’s Dictionary © Cambridge University Press)