• 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"

'Notional' in other languages