Source : Webster's Revised Unabridged Dictionary (1913)

Inquisitively \In*quis"i*tive*ly\, adv.
   In an inquisitive manner.

         The occasion that made him afterwards so inquisitively
         apply himself to the study of physic.    --Boyle.

Source : WordNet®

inquisitively
     adv : with curiosity; "the baby looked around curiously" [syn: {curiously},
            {interrogatively}]