Wordnet 3.0
ADVERB (1)
1. 
 in an intuitive manner; 
- Example: "inventors seem to have chosen intuitively a combination of explosive and aggressive sounds as warning signals to be used on automobiles"
The Collaborative International Dictionary of English v.0.48:
Intuitively \In*tu"i*tive*ly\, adv.
   In an intuitive manner.
   [1913 Webster]
WordNet (r) 3.0 (2006):
intuitively
    adv 1: in an intuitive manner; "inventors seem to have chosen
           intuitively a combination of explosive and aggressive
           sounds as warning signals to be used on automobiles"