51 entries under excessive topic. ×

14
unreasonable(adjective, wrong, improper, unnecessary)
10
unwarrantable(adjective, wrong, unreasonable, extreme, improper)
9
undue(adjective, unreasonable, extreme, improper, senseless)
8
unconscionable(adjective, extreme, improper, senseless)
7
extravagant(adjective, improper, unwarranted, unnecessary)
7
gratuitous(adjective, unwarranted, untrue, flimsy)
7
unfair(adjective, extreme, improper, extravagant, senseless)
6
extreme(adjective, improper, senseless, unwarranted)
6
immoderate(adjective, extreme, improper, senseless)
6
uncalled-for(adjective, extreme, improper, stiff, extravagant)
6
unjust(adjective, unreasonable, extreme, improper, extravagant)
5
exorbitant(adjective, extreme, improper, senseless)
3
improper(adjective, wrong, unreasonable, extreme, stiff)
3
inordinate(adjective, extreme, improper, senseless)
2
extortionate(adjective, extreme, improper, senseless)
2
illegal(adjective, wrong, unreasonable, dishonest, improper)
2
needless(adjective, improper, unwarranted, unnecessary)
2
undeserved(adjective, unreasonable, improper, unwarranted)
2
unprovoked(unwarranted, unnecessary, immoderate, unjustified)
1
costing an arm and a leg(expression, adjective, idiom, extreme, improper)
<123>
11 years ago|7.7k views|share |citing 
APASmart Define. (2015). unjustifiable thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unjustifiable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unjustifiable thesaurus" https://smartdefine.org/unjustifiable/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unjustifiable thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unjustifiable/thesaurus/synonyms>.
MLASmart Define. "unjustifiable thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/unjustifiable/thesaurus/synonyms>