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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.

See Examples For:

Am I ungrateful for turning down his offer to buy me a home?

From MarketWatch Jul. 17, 2026

He said his mother sued him this year in a land ownership dispute under Thailand's "ungrateful child" law, which allows parents to reclaim assets previously given to children deemed unappreciative through their behaviour.

From Barron's May 25, 2026

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

Some said they had "crossed the line", while others called them "stupid and reckless," and even "ungrateful" for picking a fight with Ador.

From BBC Mar. 26, 2025

No suggestion that he had wasted yet another night risking his life for an ungrateful foreigner who would never be able to repay him—the Aerodrome Drop-Off Principle taken to extremes.

From "Code Name Verity" by Elizabeth Wein

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