[syn: aglitter(p), coruscant, fulgid, glinting, glistering, glittering, glittery, scintillant, scintillating, sparkly]
The Collaborative International Dictionary of English v.0.48:
Scintillate \Scin"til*late\, v. i. [imp. & p. p. Scintillated;
   p. pr. & vb. n. Scintillating.] [L. scintillare,
   scintillatum, from scintilla a spark. Cf. Stencil.]
   1. To emit sparks, or fine igneous particles.
      [1913 Webster]
            As the electrical globe only scintillates when
            rubbed against its cushion.           --Sir W.
                                                  Scott.
      [1913 Webster]
   2. To sparkle, as the fixed stars.
      [1913 Webster]
WordNet (r) 3.0 (2006):
scintillating
    adj 1: brilliantly clever; "scintillating wit"; "a play full of
           scintillating dialogue"
    2: marked by high spirits or excitement; "his fertile
       effervescent mind"; "scintillating personality"; "a row of
       sparkly cheerleaders" [syn: bubbling, effervescent,
       frothy, scintillating, sparkly]
    3: having brief brilliant points or flashes of light; "bugle
       beads all aglitter"; "glinting eyes"; "glinting water"; "his
       glittering eyes were cold and malevolent"; "shop window full
       of glittering Christmas trees"; "glittery costume jewelry";
       "scintillant mica"; "the scintillating stars"; "a dress with
       sparkly sequins"; "`glistering' is an archaic term" [syn:
       aglitter(p), coruscant, fulgid, glinting,
       glistering, glittering, glittery, scintillant,
       scintillating, sparkly]
Moby Thesaurus II by Grady Ward, 1.0:
119 Moby Thesaurus words for "scintillating":
   Attic, ablaze, adroit, afire, aflame, aflicker, aglow, alight, apt,
   ardent, biting, blazing, blinking, blinky, brainy, bright,
   brilliant, burning, candent, candescent, clever, comburent,
   conflagrant, coruscant, coruscating, dazzling, dexterous, droll,
   dynamic, effervescent, effulgent, engaging, entrancing, exciting,
   facetious, fascinating, flagrant, flaming, flaring, flashing,
   flickering, fuming, funny, gifted, gleaming, glimmering,
   glimmerous, glimmery, glistening, glistering, glittering, glittery,
   glowing, good, guttering, humorous, humorsome, ignescent, ignited,
   in a blaze, in a glow, in flames, incandescent, inflamed,
   invigorating, jesting, jocose, jocular, joking, joky, joshing,
   keen, keen-witted, kindled, live, lively, living, lustrous,
   mordant, nimble, nimble-witted, no dumbbell, not born yesterday,
   on fire, pointed, pungent, quick, quick-thinking, quick-witted,
   radiant, rapier-like, reeking, salt, salty, scintillant,
   scintillescent, sharp, sharp-witted, shimmering, shimmery, shining,
   smart, smoking, smoldering, spangly, sparking, sparkling,
   sprightly, steel-trap, stimulating, talented, tinselly, twinkling,
   twinkly, unextinguished, unquenched, vivacious, whimsical, witty