# thankless

> English word · Adjective · frequency rank #46,812

## Definitions
1. not appreciated or rewarded
2. ungrateful or unappreciative

## Etymology
From Middle English thankles, equivalent to thank + -less.

## Common misspellings (13)
`htankless`, `tahnkless`, `thaknless`, `thankelss`, `thankkless`, `thankles`, `thanklless`, `thanklses`, `thanlkess`, `thannkless`, `thhankless`, `thnakless`, `tthankless`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/thankless