suppositional vs supposed

suppositional and supposed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
suppositional	No	Yes	No	No
supposed	No	Yes	No	No

As adjectives, suppositional and supposed are synonyms defined as:

suppositional and supposed: based primarily on surmise rather than adequate evidence

Other synonyms of suppositional include conjectural, divinatory, hypothetic, hypothetical, suppositious, supposititious.

suppositional (adjective)	supposed (adjective)
based primarily on surmise rather than adequate evidence	required or under orders
	doubtful or suspect
	based primarily on surmise rather than adequate evidence
	mistakenly believed