constructively

from WordNet (r) 3.0 (2006)

constructively
    adv 1: in a constructive manner; "it is my task to look
           critically and constructively at the flaws and the
           failures"

from The Collaborative International Dictionary of English v.0.48

Constructively \Con*struct"ive*ly\, adv.
   In a constructive manner; by construction or inference.
   [1913 Webster]

         A neutral must have notice of a blockade, either
         actually by a formal information, or constructively by
         notice to his government.                --Kent.
   [1913 Webster]