incoherent vs unlogical

incoherent and unlogical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
incoherent	No	Yes	No	No
unlogical	No	Yes	No	No

incoherent (adjective)	unlogical (adjective)
without logical or meaningful connection	lacking in correct logical relation
(physics) of waves having no stable definite or stable phase relation
unable to express yourself clearly or fluently