1 anxious about something or afraid of something nervous (about/of something) Consumers are very nervous about the future. The horse may be nervous of cars. nervous (about/of doing something) He had been nervous about inviting us. I felt really nervous before the interview. a nervous glance/smile/voice (= one that shows that you feel anxious) By the time the police arrived, I was a nervous wreck.2 easily worried or frightened She was a thin, nervous girl. He's not the nervous type. She was of a nervous disposition.