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 | ||