someone who is overcome with worry, fear, or anxiety: He’s an incredible singer but a complete bundle of nerves before a performance.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Other Idioms and Phrases with bundle of nerves
Extremely jittery, tense, or fearful person, as in For months after the accident, Aunt Jane was a bundle of nerves. [1930s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.