20
gratuitous(adjective, feature, state, characteristic, free)
18
free(adjective, adverb, feature, characteristic, charge)
16
laudatory(adjective, good, kind, praise, friendly)
15
gratis(adjective, adverb, free, money, spontaneous)
15
commendatory(adjective, kind, praise, flattering, approbation)
12
eulogistic(adjective, kind, enthusiastic, gracious, burning)
11
congratulatory(adjective, feature, characteristic, kind, praise)
11
encomiastic(adjective, kind, gracious, flattering, approbation)
10
costless(adjective, free, spontaneous, paper, gratuitous)
10
flattering(adjective, kind, polite, courteous, flattering)
9
honorary(adjective, feature, state, characteristic, free)
9
on the house(expression, adjective, idiom, adverb, free)
9
panegyrical(adjective, kind, enthusiastic, gracious, burning)
8
approving(adjective, good, kind, friendly, agreeable)
8
favorable(adjective, kind, friendly, positive, flattering)
8
unpaid(adjective, feature, state, characteristic, free)
7
appreciative(adjective, kind, positive, flattering, admiring)
7
fawning(adjective, kind, flattering, admiring)
7
free of charge(expression, adjective, idiom, adverb, free)
7
honourable(adjective, feature, state, characteristic)
<1234510>
11 years ago|6.8k views|share |citing 
APASmart Define. (2015). complimentary thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/complimentary/thesaurus/synonyms
ChicagoSmart Define. 2015. "complimentary thesaurus" https://smartdefine.org/complimentary/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, complimentary thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/complimentary/thesaurus/synonyms>.
MLASmart Define. "complimentary thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/complimentary/thesaurus/synonyms>