unthankful
0 antonyms and opposites of unthankful, grouped by meaning.
Adj — Not thankful; ungrateful.
We haven't recorded synonyms for unthankful yet. You can still read its full definition, where it comes from, or words that rhyme with it.
Etymology
From Middle English unthankful, from Old English unþancful, unþancfull, unġeþancfull (“unthankful, ungrateful”), equivalent to un- + thankful. Cognate with Old High German undankfol (“unthankful, ungrateful”).
Full origin of unthankful →