missional vs missionary

missional is not a noun while missionary is a noun.

Word	Noun	Adjective	Verb	Adverb
missional	No	Yes	No	No
missionary	Yes	Yes	No	No

As adjectives, missional and missionary are synonyms defined as:

missional and missionary: relating to or connected to a religious mission

missional (noun)	missionary (noun)
	someone who attempts to convert others to a particular doctrine or program
	someone sent on a mission--especially a religious or charitable mission to a foreign country

missional (adjective)	missionary (adjective)
relating to or connected to a religious mission	relating to or connected to a religious mission