being (or being of the nature of) a notion or concept; "a plan abstract and conceptional"; "to improve notional comprehension"; "a notional response to the question";
indulging in or influenced by fancy; "a fanciful mind"; "all the notional vagaries of childhood";
not based on fact or investigation; "a notional figure of cost helps in determining production costs"; "speculative knowledge";
not based on fact; dubious; "the falsehood about some fanciful secret treaties"- F.D.Roosevelt; "a small child''s imaginary friends"; "her imagined fame"; "to create a notional world for oneself";
having descriptive value as distinguished from syntactic category; "sex is a notional category; gender is a syntactic one";