Source : Webster's Revised Unabridged Dictionary (1913)

Apprehensive \Ap`pre*hen"sive\, a. [Cf. F. appr['e]hensif. See
   {Apprehend}.]
   1. Capable of apprehending, or quick to do so; apt;
      discerning.

            It may be pardonable to imagine that a friend, a
            kind and apprehensive . . . friend, is listening to
            our talk.                             --Hawthorne.

   2. Knowing; conscious; cognizant. [R.]

            A man that has spent his younger years in vanity and
            folly, and is, by the grace of God, apprehensive of
            it.                                   --Jer. Taylor.

   3. Relating to the faculty of apprehension.

            Judgment . . . is implied in every apprehensive act.
                                                  --Sir W.
                                                  Hamilton.

   4. Anticipative of something unfavorable' fearful of what may
      be coming; in dread of possible harm; in expectation of
      evil.

            Not at all apprehensive of evils as a distance.
                                                  --Tillotson.

            Reformers . . . apprehensive for their lives.
                                                  --Gladstone.

   5. Sensible; feeling; perceptive. [R.]

            Thoughts, my tormentors, armed with deadly stings,
            Mangle my apprehensive, tenderest parts. --Milton.

Source : WordNet®

apprehensive
     adj 1: quick to understand; "a kind and apprehensive friend"-
            Nathaniel Hawthorne [syn: {discerning}]
     2: mentally upset over possible misfortune or danger etc;
        worried; "anxious parents"; "anxious about her job"; "not
        used to a city and anxious about small things"; "felt
        apprehensive about the consequences" [syn: {anxious}]
     3: in fear or dread of possible evil or harm; "apprehensive for
        one's life"; "apprehensive of danger"