logicalness vs logical

logicalness is a noun but logical is not a noun.

Word	Noun	Adjective	Verb	Adverb
logicalness	Yes	No	No	No
logical	No	Yes	No	No

logicalness (noun)	logical (noun)
correct and valid reasoning

logicalness (adjective)	logical (adjective)
	capable of or reflecting the capability for correct and valid reasoning
	marked by an orderly, logical, and aesthetically consistent relation of parts
	capable of thinking and expressing yourself in a clear and consistent manner
	based on known statements or events or conditions