Wordnet 3.0
ADJECTIVE (1)
1. 
 of or relating to attitudes; 
The Collaborative International Dictionary of English v.0.48:
Attitudinal \At`ti*tu"di*nal\, a.
   Relating to attitude.
   [1913 Webster]
WordNet (r) 3.0 (2006):
attitudinal
    adj 1: of or relating to attitudes