Source : Webster's Revised Unabridged Dictionary (1913)

Hasty \Has"ty\, a. [Compar. {Hastier}; superl. {Hastiest}.]
   [Akin to D. haastig, G., Sw., & Dan. hastig. See {Haste}, n.]
   1. Involving haste; done, made, etc., in haste; as, a hasty
      sketch.

   2. Demanding haste or immediate action. [R.] --Chaucer.
      ``Hasty employment.'' --Shak.

   3. Moving or acting with haste or in a hurry; hurrying;
      hence, acting without deliberation; precipitate; rash;
      easily excited; eager.

   4. Made or reached without deliberation or due caution; as, a
      hasty conjecture, inference, conclusion, etc., a hasty
      resolution.

   5. Proceeding from, or indicating, a quick temper.

            Take no unkindness of his hasty words. --Shak.

   6. Forward; early; first ripe. [Obs.] ``As the hasty fruit
      before the summer.'' --Is. xxviii. 4.

Source : WordNet®

hasty
     adj 1: excessively quick; "made a hasty exit"; "a headlong rush to
            sell" [syn: {headlong}]
     2: done with very great haste and without due deliberation;
        "hasty marriage seldom proveth well"- Shakespeare; "hasty
        makeshifts take the place of planning"- Arthur Geddes;
        "rejected what was regarded as an overhasty plan for
        reconversion"; "wondered whether they had been rather
        precipitate in deposing the king" [syn: {overhasty}, {precipitate},
         {precipitant}, {precipitous}]
     [also: {hastiest}, {hastier}]