thankless

1 not showing gratitude a thankless boss who seems oblivious to the extra effort his subordinates have made Synonyms unappreciative, ungrateful Related Words rude, thoughtless, ungracious Near Antonyms beholden, indebted; gratified, pleased; courteous, gracious, thoughtful Antonyms appreciative, grateful, obliged, thankful

2 not likely to be appreciated by those who benefit the thankless job of cleaning up after a party Synonyms unappreciated, ungrateful Related Words uncredited, underappreciated, underrated, undervalued, unnoticed, unrecognized, unrewarded, unsung, unvalued Near Antonyms credited, esteemed, honored, prized, recognized, regarded, rewarded, valued; creditable, meritorious, praiseworthy Antonyms appreciated