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Synonyms for thankless
modified
Not returning thanks
unappreciative, ungrateful, self-centered; see cruel 2, rude 2.Not eliciting thanks
poorly paid, unappreciated, unrewarded, profitless, disagreeable, unrecognized, vain, barren, not worth it; see also useless 1.
See thankless in Webster's New World Roget's A-Z Thesaurus II
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