The Collaborative International Dictionary of English v.0.48:

Drowsy \Drow"sy\, a. [Compar. Drowsier; superl. Drowsiest.]
   1. Inclined to drowse; heavy with sleepiness; lethargic;
      dozy. "When I am drowsy." --Shak.
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            Dapples the drowsy east with spots of gray. --Shak.
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            To our age's drowsy blood
            Still shouts the inspiring sea.       --Lowell.
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   2. Disposing to sleep; lulling; soporific.
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            The drowsy hours, dispensers of all good.
                                                  --Tennyson.
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   3. Dull; stupid. " Drowsy reasoning." --Atterbury.

   Syn: Sleepy; lethargic; dozy; somnolent; comatose; dull
        heavy; stupid.
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