11 entries under unappreciative topic. ×

20
ungrateful(adjective, difficult, rude, inconsiderate, grateful)
16
unthankful(adjective, rude, inconsiderate, grateful, churlish)
11
thoughtless(adjective, rude, inconsiderate, ungrateful)
8
heedless(adjective, rude, inconsiderate, churlish)
5
careless(adjective, rude, inconsiderate, churlish)
5
self-centered(adjective, rude, inconsiderate, churlish)
5
ungracious(adjective, rude, inconsiderate, churlish)
4
cruel(adjective, rude, inconsiderate, unthankful)
4
rude(adjective, inconsiderate, unthankful)
3
unmindful(adjective, inconsiderate, ingratitude)
2
inappreciative(adjective, rude, inconsiderate, unthankful)
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APASmart Define. (2015). thankless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/thankless/thesaurus/synonyms
ChicagoSmart Define. 2015. "thankless thesaurus" https://smartdefine.org/thankless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, thankless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/thankless/thesaurus/synonyms>.
MLASmart Define. "thankless thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/thankless/thesaurus/synonyms>