thankless

[ thangk-lis ]
/ ˈθæŋk lɪs /
SEE SYNONYMS FOR thankless ON THESAURUS.COM

adjective

not likely to be appreciated or rewarded; unappreciated: a thankless job.
not feeling or expressing gratitude or appreciation; ungrateful: a thankless child.

Origin of thankless

First recorded in 1530–40; thank + -less

OTHER WORDS FROM thankless

thank·less·ly, adverb thank·less·ness, noun

Words nearby thankless

thank-you, thank-you-ma'am, thankee, thankful, thankfully, thankless, thanks, thanks to, thanksgiver, thanksgiving, thanksgiving day

Words related to thankless

fruitless, unpleasant, futile, ungrateful, unthankful, barren, disagreeable, distasteful, miserable, unprofitable, useless, vain, wretched, unrequited, unrecognized, unreturned, unrewarding, careless, cruel, heedless

Example sentences from the Web for thankless

British Dictionary definitions for thankless

thankless
/ (ˈθæŋklɪs) /

adjective

receiving no thanks or appreciation a thankless job
ungrateful a thankless pupil

Derived forms of thankless

thanklessly, adverb thanklessness, noun