Meaning : Not based on fact or investigation.
Example :
A notional figure of cost helps in determining production costs.
Speculative knowledge.
Synonyms : speculative
Meaning : Indulging in or influenced by fancy.
Example :
A fanciful mind.
All the notional vagaries of childhood.
Synonyms : fanciful
Meaning : Being of the nature of a notion or concept.
Example :
A plan abstract and conceptional.
To improve notional comprehension.
A notional response to the question.
Synonyms : conceptional, ideational