| 单词 | unthankful |
| 释义 | unthankful —unthankfully, adv. —unthankfulness, n. /un thangk"feuhl/, adj. 1. not thankful; ungrateful. 2. not repaid with thanks; thankless: an unthankful task. [1350-1400; ME; see UN-1, THANKFUL] |
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