The Collaborative International Dictionary of English v.0.48:

Infatuate \In*fat"u*ate\, v. t. [imp. & p. p. Infatuated; p.
   pr. & vb. n. Infatuating.]
   [1913 Webster]
   1. To make foolish; to affect with folly; to weaken the
      intellectual powers of, or to deprive of sound judgment.
      [1913 Webster]

            The judgment of God will be very visible in
            infatuating a people . . . ripe and prepared for
            destruction.                          --Clarendon.
      [1913 Webster]

   2. To inspire with a foolish and extravagant passion; as, to
      be infatuated with gaming.
      [1913 Webster]

            The people are . . . infatuated with the notion.
                                                  --Addison.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Infatuated \In*fat"u*a`ted\, a.
   Overcome by some foolish passion or desire; affected by
   infatuation.
   [1913 Webster]

WordNet (r) 3.0 (2006):

infatuated
    adj 1: marked by foolish or unreasoning fondness; "gaga over the
           rock group's new album"; "he was infatuated with her"
           [syn: enamored, infatuated, in love, potty,
           smitten, soft on(p), taken with(p)]

Moby Thesaurus II by Grady Ward, 1.0:

118 Moby Thesaurus words for "infatuated":
   apish, asinine, at fever pitch, batty, becharmed, befooled,
   beguiled, besotted, bewitched, brainless, buffoonish, captivated,
   charmed, cockeyed, crazy, credulous, daffy, daft, dazed, delirious,
   dizzy, doting, dotty, dumb, easily taken in, easy of belief,
   enamored, enchanted, enraptured, enthused, enthusiastic,
   enthusiastic about, fanatical, fascinated, fatuitous, fatuous,
   febrile, feverish, fixated, flaky, fond, fool, foolheaded, foolish,
   frantic, frenetic, frenzied, fuddled, full of enthusiasm, furious,
   futile, gaga, glowing, goofy, gripped, gulled, gung-ho,
   heartsmitten, hectic, held, hung-up, hypnotized, hysteric, idiotic,
   imbecile, inane, inclined to believe, inept, infatuate,
   infatuated with, insane, keen on, kooky, loony, mad, maudlin,
   mesmerized, monomaniac, monomaniacal, moronic, nutty, obsessed,
   overanxious, overconfiding, overcredulous, overdesirous, overeager,
   overenthusiastic, overtrustful, overtrusting, overzealous,
   perfervid, possessed, preoccupied, prepossessed, sappy, screwy,
   senseless, sentimental, silly, smitten, spellbound, stupid,
   superstitious, taken with, thoughtless, trustful, trusting,
   ultrazealous, uncritical, undoubting, unskeptical, unsuspecting,
   unsuspicious, wacky, wet, wild, witless