13
unrequited
2
black
1
unappreciative
0
abhorrent
0
abject
0
abominable
0
abusive
0
adverse
0
aggravating
0
aggrieved
0
angering
0
anguished
0
annoying
0
appeases
0
averse
0
belittling
0
benefits
0
benefits forgot
0
bilious
0
bittersweet
<12345…10>
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APASmart Define. (2015). thankless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/thankless/thesaurus/related
ChicagoSmart Define. 2015. "thankless thesaurus" https://smartdefine.org/thankless/thesaurus/related (accessed September 25, 2026).
HarvardSmart Define 2015, thankless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/thankless/thesaurus/related>.
MLASmart Define. "thankless thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/thankless/thesaurus/related>