2
torpedo(noun, soldier, guerrilla, murderer, assassin)
2
demolisher
2
dragon
2
eliminator(noun, soldier, guerrilla, murderer, slayer)
2
a-yo(expression, idiom, informal, greeting)
2
crook
2
demanding
2
demon
2
exacting
2
gun(noun, soldier, guerrilla, murderer, slayer)
2
hard(adjective, mean, harsh, cruel, vicious)
2
holy terror
2
hood
2
hoodlum
2
liquidator(noun, soldier, guerrilla, murderer, slayer)
2
mortal(adjective, mean, severe, harsh, cruel)
2
pirate
2
pitiless(adjective, mean, harsh, cruel, vicious)
2
poison
2
ripper
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>