Source : Webster's Revised Unabridged Dictionary (1913)

Glare \Glare\ (gl[^a]r), v. i. [imp. & p. p. {Glared}; p. pr. &
   vb. n. {Glaring}.] [OE. glaren, gloren; cf. AS. gl[ae]r
   amber, LG. glaren to glow or burn like coals, D. gloren to
   glimmer; prob. akin to E. glass.]
   1. To shine with a bright, dazzling light.

            The cavern glares with new-admitted light. --Dryden.

   2. To look with fierce, piercing eyes; to stare earnestly,
      angrily, or fiercely.

            And eye that scorcheth all it glares upon. --Byron.

   3. To be bright and intense, as certain colors; to be
      ostentatiously splendid or gay.

            She glares in balls, front boxes, and the ring.
                                                  --Pope.

Glaring \Glar"ing\, a.
   Clear; notorious; open and bold; barefaced; as, a glaring
   crime. -- {Glar"ing*ly}, adv.

Source : WordNet®

glaring
     adj 1: shining intensely; "the blazing sun"; "blinding headlights";
            "dazzling snow"; "fulgent patterns of sunlight"; "the
            glaring sun" [syn: {blazing}, {blinding}, {dazzling},
            {fulgent}, {glary}]
     2: conspicuously and outrageously bad or reprehensible; "a
        crying shame"; "an egregious lie"; "flagrant violation of
        human rights"; "a glaring error"; "gross ineptitude";
        "gross injustice"; "rank treachery" [syn: {crying(a)}, {egregious},
         {flagrant}, {gross}, {rank}]