notional (Adjective) — Not based on fact; unreal. ex. "to create a notional world for oneself"
notional (Adjective) — Not based on fact or investigation. ex. "a notional figure of cost helps in determining production costs"
notional (Adjective) — Indulging in or influenced by fancy. ex. "all the notional vagaries of childhood"
notional (Adjective) — Being of the nature of a notion or concept. ex. "to improve notional comprehension" ex. "a notional response to the question"