schematic drawing vs schematic

schematic drawing and schematic both are nouns.

Word	Noun	Adjective	Verb	Adverb
schematic drawing	Yes	No	No	No
schematic	Yes	Yes	No	No

As nouns, schematic drawing and schematic are synonyms defined as:

schematic drawing and schematic: diagram of an electrical or mechanical system

schematic drawing (noun)	schematic (noun)
diagram of an electrical or mechanical system	diagram of an electrical or mechanical system

schematic drawing (adjective)	schematic (adjective)
	represented in simplified or symbolic form