Synonyms of thankless

Adjective


1. ungrateful (vs. grateful), thankless, unthankful, unappreciative

usage: not feeling or showing gratitude; "ungrateful heirs"; "How sharper than a serpent's tooth it is / To have a thankless child!"- Shakespeare

2. thankless, unappreciated, ungratifying, unrewarding (vs. rewarding)

usage: not likely to be rewarded; "grading papers is a thankless task"

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Definition and meaning of thankless (Dictionary)