Meaning of notional

(adj) not based on fact; existing only in the imagination; "the falsehood about some fanciful secret treaties"- F.D.Roosevelt; "a small child's imaginary friends"; "to create a notional world for oneself"

not based on fact or investigation; "a notional figure of cost helps in determining production costs"; "speculative knowledge"

indulging in or influenced by fancy; "a fanciful mind"; "all the notional vagaries of childhood"

being of the nature of a notion or concept; "a plan abstract and conceptional"; "to improve notional comprehension"; "a notional response to the question"