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

trifle \tri"fle\, v. i. imp.  p. p. trifled; p. pr.  vb. n.
   trifling. oe. trifelen, truflen. see trifle, n.
   to act or talk without seriousness, gravity, weight, or
   dignity; to act or talk with levity; to indulge in light or
   trivial amusements.
   1913 webster

         they trifle, and they beat the air about nothing which
         toucheth us.                             --hooker.
   1913 webster

   to trifle with, to play the fool with; to treat without
      respect or seriousness; to mock; as, to trifle with one's
      feelings, or with sacred things.
      1913 webster
see also:
trifled trifling trifle to trifle with 

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

trifling \tri"fling\, a.
   being of small value or importance; trivial; paltry; as, a
   trifling debt; a trifling affair. -- tri"flingly, adv. --
   tri"flingness, n.
   1913 webster trifloral
see also:
tri"flingly tri"flingness 

[3] : WordNet (r) 2.0

trifling
     adj : not worth considering; "he considered the prize too paltry
           for the lives it must cost"; "piffling efforts"; "a
           trifling matter" syn: negligible, paltry
     n : the deliberate act of wasting time instead of working syn:
         dalliance, dawdling, wasting time
see also:
negligible paltry dalliance dawdling wasting time 

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

142 moby thesaurus words for "trifling":
   mickey mouse, airy, asinine, banal, bickering, brimful, brimming,
   captious, catchpenny, caviling, chic, chipper, chitchat,
   chitter-chatter, choplogic, classy, commonplace, coquetry, crammed,
   crowded, cursory, dabbling, dalliance, dallying, dashing, dawdling,
   depthless, dillydallying, dolce far niente, empty, equivocatory,
   evasive, fashionable, fatuous, few, fiddling, flimsy, flirtation,
   fooling, fooling around, foolish, footling, fribble, fribbling,
   frivolous, frothy, futile, goofing off, hairsplitting, hedging,
   hollow, idle, idling, inane, incidental, inconsequential,
   inconsiderable, insignificant, insipid, jammed, jejune,
   jerking off, kidding around, lazing, light, lingering, little,
   loaded, loafing, logic-chopping, loitering, lolling, lounging, low,
   meager, measly, messing around, miniature, minor, modish,
   monkeying, monkeying around, mopery, neat, negligible, niggling,
   nit-picking, no great shakes, nugacious, nugatory, orderly, otiose,
   packed, paltering, paltry, petty, picayune, picayunish, piddling,
   playing, playing around, pottering, puny, pussyfooting, puttering,
   quibbling, shallow, sharp, shipshape, short, shuffling, silly,
   skin-deep, slender, slight, small, smart, smattering, snappy, snug,
   spick-and-span, superficial, swank, tarrying, tidy, tinkering,
   tiny, toying, trichoschistic, trig, trim, trite, trivial,
   uncluttered, unimportant, vacuous, vain, valueless, vapid,
   well-groomed, windy, worthless

Trifling >> T Words
Trifling, definition of term: Trifling
trifling_pag1.html