crucial vs material

crucial is not a noun while material is a noun.

Word	Noun	Adjective	Verb	Adverb
crucial	No	Yes	No	No
material	Yes	Yes	No	No

crucial (noun)	material (noun)
	artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
	things needed for doing or making something
	information (data or ideas or observations) that can be used or reworked into a finished form
	a person judged suitable for admission or employment
	the tangible substance that goes into the makeup of a physical object

crucial (adjective)	material (adjective)
of extreme importance; vital to the resolution of a crisis	derived from or composed of matter
of the greatest importance	directly relevant to a matter especially a law case
having crucial relevance	having substance or capable of being treated as fact; not imaginary
	having material or physical form or substance
	concerned with or affecting physical as distinct from intellectual or psychological well-being
	concerned with worldly rather than spiritual interests