Main Entry:

thank·less

Pronunciation:

\ˈthaŋk-ləs\

Function:

adjective

Date:

15th century

1 : not likely to obtain thanks : unappreciated <a thankless task> 2 : not expressing or feeling gratitude : ungrateful <how sharper than a serpent's tooth it is to have a thankless child — Shakespeare>

— thank·less·ly adverb

— thank·less·ness noun