Added 10 October 2026
thankless
adjective
adjective Definition from Wiktionary (CC BY-SA). More about thankless at Wordnik → Where our words come from →
- Not appreciated or rewarded.
- Ungrateful or unappreciative.
Origin
From Middle English thankles, equivalent to thank + -less.
From Wiktionary, via Kaikki.org (CC BY-SA)