Added 10 October 2026
unthankful
adjective
adjective Definition from WordNet 3.1, Princeton University. More about unthankful at Wordnik → Where our words come from →
-
Not feeling or showing gratitude.
ungrateful heirs
Origin
From Middle English unthankful, from Old English unþancful, unþancfull, unġeþancfull (“unthankful, ungrateful”), equivalent to un- + thankful. Cognate with Old High German undankfol (“unthankful, ungrateful”).
From Wiktionary, via Kaikki.org (CC BY-SA)