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Synonyms

ungrateful

American  
[uhn-greyt-fuhl] / ʌnˈgreɪt fəl /

adjective

  1. unappreciative; not displaying gratitude; not giving due return or recompense for benefits conferred.

    ungrateful heirs.

  2. unpleasant; distasteful; repellent.

    an ungrateful task.


ungrateful British  
/ ʌnˈɡreɪtfʊl /

adjective

  1. not grateful or thankful

  2. unrewarding or unpleasant; thankless

  3. (of land) failing to increase fertility in response to cultivation

"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 ungrateful

First recorded in 1545–55; un- 1 + grateful

Explanation

Someone who's ungrateful isn't thankful or appreciative. Your grandmother might think you're ungrateful if you don't send her a handwritten thank you note for the birthday gift she gave you. You are ungrateful if you're unhappy with your neighbor's contribution to your yard sale — a big old television that doesn't work. Your neighbor, in turn, is ungrateful if he accepts the chocolate chip cookies you baked without even saying, "Thanks." The prefix un here means "not," and grateful comes from a now obsolete adjective, grate, "agreeable or thankful," from the Latin root gratus, "pleasing."

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Vocabulary lists containing ungrateful

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.

What no one in the diaspora is saying yet, because it feels ungrateful to say, is that exile itself became a home.

From The Wall Street Journal • Mar. 10, 2026

Related: My rude, ungrateful relative gave her lawyer power of attorney — and has lived to regret it.

From MarketWatch • Mar. 6, 2026

It was all happening at a time when internally I felt so lucky to be starting a family, and was desperate not to come across as ungrateful.

From BBC • Dec. 10, 2025

But some California leaders see Musk’s stance as ungrateful for the role the state has played in supporting his successes, particularly at Tesla and SpaceX.

From Los Angeles Times • Jul. 23, 2024

In truth, Bobby’s quick dismissal of Collins’s contribution may have been delivered out of cold, ungrateful pride.

From "Endgame" by Frank Brady

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