[uhn-thangk-fuh l]


not thankful; ungrateful.
not repaid with thanks; thankless: an unthankful task.

Origin of unthankful

Middle English word dating back to 1350–1400; see origin at un-1, thankful
Related formsun·thank·ful·ly, adverbun·thank·ful·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unthankful

Historical Examples of unthankful