thankless

Synonyms: barren disagreeable distasteful fruitless futile miserable not worth it ungrateful unpleasant unprofitable unrecognized unrequited unreturned unrewarding useless vain wretched

Antonyms: appreciated contented grateful rewarded satisfied thankful

Synonyms: careless cruel heedless inappreciative rude self-centered thoughtless ungracious ungrateful unmindful unthankful

Antonyms: appreciative considerate grateful thankful