trigger-happy vs fierce

trigger-happy and fierce both are adjectives.

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

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

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

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

trigger-happy (adjective)	fierce (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	ruthless in competition
	violently agitated and turbulent
	marked by extreme and violent energy