See more synonyms for thankless on
  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

First recorded in 1530–40; thank + -less
Related formsthank·less·ly, adverbthank·less·ness, noun

Synonyms for thankless

See more synonyms for on Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for thankless

Contemporary Examples of thankless

Historical Examples of thankless

British Dictionary definitions for thankless


  1. receiving no thanks or appreciationa thankless job
  2. ungratefula thankless pupil
Derived Formsthanklessly, adverbthanklessness, 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

Word Origin and History for thankless

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

Online Etymology Dictionary, © 2010 Douglas Harper