thankless
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(satellite adjective) not likely to be rewarded; "grading papers is a thankless task" |
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Synonyms: unappreciated, ungratifying |
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| 2. |
(adjective) not feeling or showing gratitude; "ungrateful heirs"; "How sharper than a serpent's tooth it is / To have a thankless child!"- Shakespeare |
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Synonyms: ungrateful, unthankful |
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