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"
not based on fact
"the falsehood about some fanciful secret treaties"- F.D.Roosevelt
"a small child's imaginary friends"
"to create a notional world for oneself"