S: (adj) conceptional, ideational, notional (being of the nature of a notion or concept) "a plan abstract and conceptional"; "to improve notional comprehension"; "a notional response to the question"
S: (adj) conceptual (being or characterized by concepts or their formation) "conceptual discussions"; "the schizophrenic loses ability to abstract or do conceptual thinking"; "sex is a notional category, gender is a grammatical category"
S: (adj) ideal (constituting or existing only in the form of an idea or mental image or conception) "a poem or essay may be typical of its period in idea or ideal content"
S: (adj) ideological, ideologic (concerned with or suggestive of ideas) "ideological application of a theory"; "the drama's symbolism was very ideological"