3
gratuitous(adjective, false, useless, extra, worthless)
3
groundless(adjective, reason, useless, senseless, unwarranted)
3
indeterminate(adjective, chance 2)
3
lucky(adjective, accidental, chancy)
3
mindless
3
potluck(adjective, chancy)
3
undetermined(adjective, chance 2)
3
unnecessary(adjective, useless, extra, excessive, unwarranted)
2
aleatory
2
baseless(adjective, false, senseless, unwarranted, justification)
2
designless
2
fortunate(adjective, accidental)
2
hazardous(adjective, chancy)
2
indiscriminate
2
promiscuous
2
speculative(adjective, chancy)
2
uncertain(adjective, chancy)
2
undirected
2
unfounded(adjective, senseless, unwarranted, wanton, gratuitous)
2
ungrounded
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APASmart Define. (2015). causeless thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/causeless/thesaurus/synonyms
ChicagoSmart Define. 2015. "causeless thesaurus" https://smartdefine.org/causeless/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, causeless thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/causeless/thesaurus/synonyms>.
MLASmart Define. "causeless thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/causeless/thesaurus/synonyms>