Simple Definition of hair-trigger

from our Learner's Dictionary

hair-trigger

adjective

ˈheɚˌtrɪgɚ How to pronounce hair-trigger (audio)
always used before a noun
: becoming angry very easily
He has a hair-trigger temper.

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“Hair-trigger.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/hair-trigger. Accessed 18 Jun. 2026.

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