hypothesis vs surmisal

hypothesis and surmisal both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypothesis	Yes	No	No	No
surmisal	Yes	No	No	No

As nouns, hypothesis and surmisal are synonyms defined as:

hypothesis and surmisal: a message expressing an opinion based on incomplete evidence

Other synonyms of hypothesis include conjecture, guess, speculation, supposition, surmise.

hypothesis (noun)	surmisal (noun)
a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena	a message expressing an opinion based on incomplete evidence
a proposal intended to explain certain facts or observations
a message expressing an opinion based on incomplete evidence