1. 
[syn: conceptional, ideational, notional]
The Collaborative International Dictionary of English v.0.48:
Ideational \I`de*a"tion*al\, a.
   Pertaining to, or characterized by, ideation.
   [1913 Webster]
         Certain sensational or ideational stimuli. --Blackw.
                                                  Mag.
   [1913 Webster]
WordNet (r) 3.0 (2006):
ideational
    adj 1: being of the nature of a notion or concept; "a plan
           abstract and conceptional"; "to improve notional
           comprehension"; "a notional response to the question"
           [syn: conceptional, ideational, notional]
Moby Thesaurus II by Grady Ward, 1.0:
40 Moby Thesaurus words for "ideational":
   bright, conceptive, conceptual, creative, discursive, esemplastic,
   fanciful, fecund, fertile, germinal, ideal, ideative, ideological,
   imaginative, ingenious, inspired, intellectual, intelligent,
   inventive, knowing, noetic, not so dumb, notional, original,
   originative, pregnant, productive, prolific, rational, reasonable,
   sane, seminal, sensible, shaping, sophic, strong-minded, teeming,
   theoretical, understanding, visioned