Nervous (adjective)

1. Easily agitated or upset.
2. Affected by nerves.
3. Anxious or apprehensive.

Origin:

Middle english: from old french nervos, from latin nervosus, from nervus "sinew, nerve".

Examples:

1. He was nervous about the meeting.
2. She was nervous about the interview.
3. They were nervous about the test.
4. We were nervous about the presentation.
5. I was nervous about the flight.