58 entries under adjective topic. ×

14
free(charge, courtesy, spontaneous, gratuitous)
12
gratis(free, courtesy, spontaneous, paper)
11
complimentary(free, spontaneous, paper, gratuitous)
11
gratuitous(free, courtesy, paper, complimentary)
4
unpaid(free, spontaneous, paper, complimentary)
3
for nothing(expression, idiom, free, paper)
3
free of charge(expression, idiom, free, courtesy)
3
on the house(expression, idiom, free, courtesy)
2
for love(expression, free, paper, gratuitous)
2
freebie(free, paper, gratuitous, comp)
2
honorary(free, courtesy, cheapness, gratis)
2
without charge(expression, idiom, free, paper)
1
adulatory
1
as a gift(expression, idiom)
1
as a perk(expression, idiom, free, courtesy)
1
chargeless(free, courtesy, spontaneous, paper)
1
comp(free, courtesy, paper, complimentary)
1
detached
1
donated(free, courtesy, gratis)
1
free lunch(expression, free, courtesy, complimentary)
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APASmart Define. (2015). costless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/costless/thesaurus/synonyms
ChicagoSmart Define. 2015. "costless thesaurus" https://smartdefine.org/costless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, costless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/costless/thesaurus/synonyms>.
MLASmart Define. "costless thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/costless/thesaurus/synonyms>