Source : Webster's Revised Unabridged Dictionary (1913)

Impress \Im*press"\, v. t. [imp. & p. p. {Impressed}; p. pr. &
   vb. n. {Impressing}.] [L. impressus, p. p. of imprimere to
   impress; pref. im- in, on + premere to press. See {Press} to
   squeeze, and cf. {Imprint}.]
   1. To press, stamp, or print something in or upon; to mark by
      pressure, or as by pressure; to imprint (that which bears
      the impression).

            His heart, like an agate, with your print impressed.
                                                  --Shak.

   2. To produce by pressure, as a mark, stamp, image, etc.; to
      imprint (a mark or figure upon something).

   3. Fig.: To fix deeply in the mind; to present forcibly to
      the attention, etc.; to imprint; to inculcate.

            Impress the motives of persuasion upon our own
            hearts till we feel the force of them. --I. Watts.

   4. [See {Imprest}, {Impress}, n., 5.] To take by force for
      public service; as, to impress sailors or money.

            The second five thousand pounds impressed for the
            service of the sick and wounded prisoners. --Evelyn.

Source : WordNet®

impressed
     adj : deeply or markedly affected or influenced [syn: {impressed(p)}]