unthankful

[ uhn-thangk-fuhl ]

adjective

1. not thankful; ungrateful.
2. not repaid with thanks; thankless:

   an unthankful task.

Other Words From

• un·thankful·ly adverb
• un·thankful·ness noun

Word History and Origins

Origin of unthankful¹

Middle English word dating back to 1350–1400; un- ¹, thankful

Example Sentences

Mary took the news of her great promotion in an unthankful spirit.

From Project Gutenberg

Fie, I scorn it, it shall never be cast in my teeth, that I was unthankful.

From Project Gutenberg

If I have dwelt too long on my deservings To this unthankful man, pray you pardon me; The cause required it.

From Project Gutenberg

Sir Adrian felt that the Commissioner was one of the few men in the world whom he could trust with the unthankful task.

From Project Gutenberg

And be not unthankful for so great a mercy, because you have not more.

From Project Gutenberg