trigger-happy vs vehement

trigger-happy and vehement both are adjectives.

Word	Noun	Adjective	Verb	Adverb
trigger-happy	No	Yes	No	No
vehement	No	Yes	No	No

As adjectives, trigger-happy and vehement are synonyms defined as:

trigger-happy and vehement: marked by extreme intensity of emotions or convictions; inclined to react violently; fervid

Other synonyms of trigger-happy include fierce, tearing, violent.

trigger-happy (adjective)	vehement (adjective)
marked by extreme intensity of emotions or convictions; inclined to react violently; fervid	marked by extreme intensity of emotions or convictions; inclined to react violently; fervid
irresponsible in the use of firearms	characterized by great force or energy