speculative vs notional

speculative and notional both are adjectives.

Word	Noun	Adjective	Verb	Adverb
speculative	No	Yes	No	No
notional	No	Yes	No	No

As adjectives, speculative and notional are synonyms defined as:

speculative (adjective)	notional (adjective)
showing curiosity	being of the nature of a notion or concept
not based on fact or investigation	indulging in or influenced by fancy
not financially safe or secure	not based on fact or investigation
	not based on fact; existing only in the imagination