suppositional vs conjectural

suppositional and conjectural both are adjectives.

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

As adjectives, suppositional and conjectural are synonyms defined as:

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

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

suppositional (adjective)	conjectural (adjective)
based primarily on surmise rather than adequate evidence	based primarily on surmise rather than adequate evidence