40 entries under unwarranted topic. ×

11
indefensible(adjective, unnecessary, unjustified, undeserved)
10
unjustifiable(adjective, wrong, unreasonable, extreme, improper)
5
unreasonable(adjective, wrong, improper, excessive)
4
unjustified(adjective, wrong, improper, excessive)
2
black-market(adjective, irregular, criminal, illegal)
2
criminal(adjective, irregular, illegal, illegitimate)
2
illegitimate(adjective, extreme, irregular, improper, extravagant)
2
illicit(adjective, irregular, criminal, illegitimate)
2
outlawed(adjective, irregular, criminal, illegal)
2
unlawful(adjective, extreme, irregular, improper, extravagant)
2
wrongful(adjective, extreme, irregular, improper, extravagant)
1
arbitrary(adjective, unreasonable, extreme, improper, stiff)
1
costing an arm and a leg(expression, adjective, idiom, extreme, improper)
1
excessive(adjective, extreme, improper, senseless)
1
extralegal(adjective, irregular, criminal, illegal)
1
extravagant(adjective, improper, excessive, unnecessary)
1
extreme(adjective, improper, senseless, excessive)
1
far-out(adjective, unreasonable, extreme, improper, stiff)
1
forbidden(adjective, unreasonable, irregular, improper, excessive)
1
inept(adjective, unreasonable, improper, unnecessary)
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APASmart Define. (2015). unwarrantable thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unwarrantable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unwarrantable thesaurus" https://smartdefine.org/unwarrantable/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unwarrantable thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unwarrantable/thesaurus/synonyms>.
MLASmart Define. "unwarrantable thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/unwarrantable/thesaurus/synonyms>