[1] : The Collaborative International Dictionary of English v.0.48

hardworking \hard"work`ing\ adj.
   1. habitually working diligently and for long hours.

   syn: industrious, tireless, untiring.
        wordnet 1.5

[2] : WordNet (r) 2.0

hardworking
     adj : characterized by hard work and perseverance syn: industrious,
            tireless, untiring
see also:
industrious tireless untiring 

[3] : Moby Thesaurus II by Grady Ward, 1.0

37 moby thesaurus words for "hardworking":
   ardent, assiduous, diligent, drudging, energetic, fervent,
   grinding, grubbing, hard, indefatigable, industrious, laboring,
   laborious, never idle, pegging, plodding, plugging, relentless,
   sedulous, slaving, sleepless, slogging, straining, strenuous,
   striving, struggling, sweating, tireless, toiling, unflagging,
   unremitting, unsleeping, unsparing, unwearied, vehement, working,
   zealous

Hardworking >> H Words
Hardworking, definition of term: Hardworking
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