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

underhanded \un"derhand`ed\, a.
   1. underhand; clandestine.
      1913 webster

   2. insufficiently provided with hands or workers;
      short-handed; sparsely populated; obsolete in this sense,
      short-handed or understaffed being the preferrred
      term.
      1913 webster +jg

            norway . . . might defy the world, . . . but it is
            much underhanded now.                 --coleridge.
      1913 webster
see also:
short-handed understaffed 

[2] : WordNet (r) 2.0

underhanded
     adj 1: marked by deception; "achieved success in business only by
            underhand methods" syn: sneaky, underhand
     2: with hand brought forward and up from below shoulder level;
        "an underhand pitch"; "an underhand stroke" syn: underhand,
         underarm ant: overhand
see also:
sneaky underhand underarm overhand 

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

87 moby thesaurus words for "underhanded":
   amoral, artful, back-door, backstairs, calculating, chiseling,
   clandestine, collusive, conscienceless, corrupt, corrupted, covert,
   covinous, crafty, criminal, crooked, cunning, dark, deceitful,
   devious, dishonest, dishonorable, doubtful, dubious, duplicitous,
   evasive, false, falsehearted, feline, felonious, finagling, fishy,
   fraudulent, furtive, guileful, hidlings, hole-and-corner,
   hugger-mugger, ill-got, ill-gotten, immoral, indirect, insidious,
   not kosher, privy, questionable, quiet, rotten, scheming, shady,
   shameless, sharp, shifty, sinister, skulking, slinking, slinky,
   slippery, sly, sneaking, sneaky, stealthy, surreptitious,
   suspicious, treacherous, trickish, tricky, two-faced,
   unconscienced, unconscientious, unconscionable, under-the-counter,
   under-the-table, undercover, underground, underhand, undermanned,
   understaffed, unethical, unobtrusive, unprincipled, unsavory,
   unscrupulous, unstraightforward, wily, without remorse,
   without shame

Underhanded >> U Words
Underhanded, definition of term: Underhanded
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