1
hell-raiser
1
hellcat
1
hellhound
1
hellion
1
hello(expression, idiom, informal, greeting)
1
hired killer
1
hit person(noun, expression, soldier, guerrilla, murderer)
1
holla(expression, idiom, informal, greeting)
1
homicidal maniac
1
hothead
1
hotspur
1
humdinger
1
iconoclast
1
incendiary
1
inhuman(adjective, mean, harsh, cruel, vicious)
1
ironfisted(adjective, mean, severe, harsh, cruel)
1
job
1
killers
1
laborious
1
larrikin
10 years ago|24k views|share |citing 
APASmart Define. (2016). killer thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/killer/thesaurus/synonyms
ChicagoSmart Define. 2016. "killer thesaurus" https://smartdefine.org/killer/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, killer thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/killer/thesaurus/synonyms>.
MLASmart Define. "killer thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/killer/thesaurus/synonyms>