unrefined vs crude

unrefined is not a noun while crude is a noun.

Word	Noun	Adjective	Verb	Adverb
unrefined	No	Yes	No	No
crude	Yes	Yes	No	No

As adjectives, unrefined and crude are synonyms defined as:

Other synonyms of unrefined include unprocessed.

unrefined (noun)	crude (noun)
	a dark oil consisting mainly of hydrocarbons

unrefined (adjective)	crude (adjective)
(used of persons and their behavior) not refined; uncouth	not refined or processed
not refined or processed	belonging to an early stage of technical development; characterized by simplicity and (often) crudeness
	conspicuously and tastelessly indecent
	not processed or subjected to analysis
	devoid of any qualifications or disguise or adornment
	not carefully or expertly made