WordNet (r) 3.0 (2006):

trivia
    n 1: something of small importance [syn: triviality, trivia,
         trifle, small beer]

Moby Thesaurus II by Grady Ward, 1.0:

66 Moby Thesaurus words for "trivia":
   ace, atom, bit, bric-a-brac, chaff, chicken feed, chickenshit, dab,
   details, dole, dot, dram, dribble, driblet, dwarf, farthing, fleck,
   flyspeck, fragment, froth, gimcrackery, gobbet, grain, granule,
   groat, hair, handful, iota, jot, knickknackery, little, little bit,
   minim, minimum, minutiae, mite, modicum, molecule, mote, nutshell,
   ounce, particle, peanuts, pebble, pinch, pittance, point, rubbish,
   scruple, small beer, small change, small potatoes, smidgen, smitch,
   speck, spoonful, spot, thimbleful, tiny bit, tittle, trash,
   trifles, trifling amount, triviality, trumpery, whit