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Synonyms

thankless

American  
[thangk-lis] / ˈθæŋk lɪs /

adjective

  1. not likely to be appreciated or rewarded; unappreciated.

    a thankless job.

    Synonyms:
    profitless, unrewarding, vain, unacknowledged
  2. not feeling or expressing gratitude or appreciation; ungrateful.

    a thankless child.


thankless British  
/ ˈθæŋklɪs /

adjective

  1. receiving no thanks or appreciation

    a thankless job

  2. ungrateful

    a thankless pupil

"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

Other Word Forms

Etymology

Origin of thankless

First recorded in 1530–40; thank + -less

Explanation

When you do something that doesn't earn you any gratitude, you can call it thankless. Handing out parking tickets and giving unsolicited advice can both be thankless jobs. If no one says, "Thanks!" despite your hard work, your task was a thankless one. You can also describe the person who doesn't express gratitude that way—Shakespeare's King Lear famously did this by saying, "How sharper than a serpent's tooth it is to have a thankless child!"

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Miyamoto has a similar humble but thankless task she’d want help with.

From Salon Jul. 18, 2026

As a society, Kalki says, we take mothers for granted and raising children is a thankless job.

From BBC Jul. 9, 2026

And somehow she had to crack China’s near-total dominance of the world’s rare earths—a strategically important but commercially thankless task.

From The Wall Street Journal Jun. 18, 2026

These are time-consuming and often thankless jobs for a friend.

From MarketWatch Feb. 12, 2026

Instead, Nana had endured the shame of bearing a harami, had shaped her life around the thankless task of raising Mariam and, in her own way, of loving her.

From "A Thousand Splendid Suns" by Khaled Hosseini

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