320 entries under adjective topic. ×

26
free(feature, characteristic, charge, allow)
22
uncalled-for(mean, severe, harsh, cruel)
21
unnecessary(useless, extra, senseless, unwarranted)
20
complimentary(feature, state, characteristic, free)
17
voluntary(feature, characteristic, free, deliberate)
15
unpaid(feature, state, characteristic, free)
15
unwarranted(right, reasonable, excessive, untrue)
14
needless(spare, useless, extra, unwarranted)
13
costless(free, courtesy, paper, complimentary)
12
gratis(free, money, courtesy, paper)
12
spontaneous(feature, characteristic, free, deliberate)
12
supererogatory(spare, extreme, useless, extra)
12
superfluous(spare, extreme, useless, extra)
10
redundant(spare, extreme, useless, extra)
10
unessential(extra, unwarranted, surplus, unnecessary)
10
wanton(mean, severe, harsh, cruel)
9
unasked(feature, characteristic, free, deliberate)
9
unjustified(false, senseless, unwarranted, reckless)
9
unneeded(spare, extreme, useless, extra)
9
unsolicited(for, uninvited, unsought)
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APASmart Define. (2015). gratuitous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/gratuitous/thesaurus/synonyms
ChicagoSmart Define. 2015. "gratuitous thesaurus" https://smartdefine.org/gratuitous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, gratuitous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/gratuitous/thesaurus/synonyms>.
MLASmart Define. "gratuitous thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/gratuitous/thesaurus/synonyms>