soothsayer vs visionary

soothsayer and visionary both are nouns.

Word	Noun	Adjective	Verb	Adverb
soothsayer	Yes	No	No	No
visionary	Yes	Yes	No	No

As nouns, visionary is a hypernym of soothsayer; that is, visionary is a word with a broader meaning than soothsayer:

soothsayer: someone who makes predictions of the future (usually on the basis of special knowledge)
visionary: a person with unusual powers of foresight

Other hypernyms of soothsayer include illusionist, seer.

soothsayer (noun)	visionary (noun)
someone who makes predictions of the future (usually on the basis of special knowledge)	a person with unusual powers of foresight
	a person given to fanciful speculations and enthusiasms with little regard for what is actually possible

soothsayer (adjective)	visionary (adjective)
	not practical or realizable; speculative