Definitions for thankless

Definitions for (adj) thankless

Main entry: thankless, ungrateful, unthankful

Definition: not feeling or showing gratitude

Usage: ungrateful heirs; How sharper than a serpent's tooth it is / To have a thankless child!- Shakespeare

Main entry: unappreciated, ungratifying, thankless

Definition: not likely to be rewarded

Usage: grading papers is a thankless task

Visual thesaurus for thankless