English adjective: thankless | |||
1. | thankless not feeling or showing gratitude | ||
Samples | Ungrateful heirs. How sharper than a serpent's tooth it is / To have a thankless child!. | ||
Synonyms | ungrateful, unthankful | ||
Similar | unappreciative | ||
Antonyms | grateful, thankful | ||
2. | thankless not likely to be rewarded | ||
Samples | Grading papers is a thankless task. | ||
Synonyms | unappreciated, ungratifying | ||
Similar | unrewarding | ||
Antonyms | rewarding | ||