37
assassin(noun, person, spy, warrior, japan)
32
shinobi(noun, person, male, warrior, japan)
21
hidden warrior(noun, person, spy)
19
spy(noun, person, warrior, japan)
14
kunoichi(noun, female, japan)
12
combatant(noun, person, top, fighter, warrior)
11
shadow(noun, person, warrior, japan, japanese)
10
walker of shadows(noun, person, warrior, japan)
10
master of invisibility(noun, expression, person, shadow, spy)
7
warrior of the night(noun, person, spy, warrior, japan)
7
master(noun, adjective, person, top, leader)
7
shadow hunter(noun, expression, person, shadow, spy)
6
bump(noun, person, slang, aggressive, warrior)
5
skibo(noun, person, slang, aggressive, warrior)
5
night warrior(noun, expression, shadow, spy, warrior)
3
sightless assassin(noun, expression, person, shadow, spy)
2
star duelist(expression, person, top, warrior, high rate)
2
walker of shadow(noun, expression, shadow, spy, warrior)
2
dark warrior(noun, expression, shadow, spy, warrior)
2
hired assassin(noun, person, aggressive, warrior, merc)
10 years ago|9k views|share |citing 
APASmart Define. (2016). ninja thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ninja/thesaurus/synonyms
ChicagoSmart Define. 2016. "ninja thesaurus" https://smartdefine.org/ninja/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, ninja thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ninja/thesaurus/synonyms>.
MLASmart Define. "ninja thesaurus" 1 April 2016. Web. 20 September 2026. <https://smartdefine.org/ninja/thesaurus/synonyms>