Source : Webster's Revised Unabridged Dictionary (1913)

Expressive \Ex*press"ive\, a. [Cf. F. expressif.]
   1. Serving to express, utter, or represent; indicative;
      communicative; -- followed by of; as, words expressive of
      his gratitude.

            Each verse so swells expressive of her woes.
                                                  --Tickell.

   2. Full of expression; vividly representing the meaning or
      feeling meant to be conveyed; significant; emphatic; as,
      expressive looks or words.

            You have restrained yourself within the list of too
            cold an adieu; be more expressive to them. --Shak.

            Through her expressive eyes her soul distinctly
            spoke.                                --Littelton.
      -- {Ex*press"ive*ly},adv. -- {Ex*press"ive*ness},n.

Source : WordNet®

expressively
     adv : with expression; in an expressive manner; "she gave the
           order to the waiter, using her hands very expressively"
           [ant: {inexpressively}]