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thankless

[thangk-lis] /ˈθæŋk lɪs/
adjective
1.
not likely to be appreciated or rewarded; unappreciated:
a thankless job.
2.
not feeling or expressing gratitude or appreciation; ungrateful:
a thankless child.
Origin of thankless
1530-1540
1530-40; thank + -less
Related forms
thanklessly, adverb
thanklessness, noun
Synonyms
1. unacknowledged, vain, unrewarding, profitless.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for thankless

thankless

/ˈθæŋklɪs/
adjective
1.
receiving no thanks or appreciation: a thankless job
2.
ungrateful: a thankless pupil
Derived Forms
thanklessly, adverb
thanklessness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for thankless
adj.

"likely to not be rewarded with thanks," 1540s, from thank + -less. Related: Thanklessly.

Online Etymology Dictionary, © 2010 Douglas Harper
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Difficulty index for thankless

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Word Value for thankless

0
17
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