ungrateful
| 1. |
(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: thankless, unthankful |
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Antonyms: grateful |
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| 2. |
(satellite adjective) disagreeable; "I will not perform the ungrateful task of comparing cases of failure"- Abraham Lincoln |
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