Pertaining to the formation of ideas or thoughts of objects not immediately present to the senses.
1999, Joyce Crick, translating Sigmund Freud, The Interpretation of Dreams, Oxford 2008, p. 61:An immoral dream would demonstrate nothing further of the dreamer's inner life than that he had at some time acquired knowledge of its ideational content , but certainly not that it revealed an impulse of his own psyche.