chronology vs chronological

chronology is a noun but chronological is not a noun.

Word	Noun	Adjective	Verb	Adverb
chronology	Yes	No	No	No
chronological	No	Yes	No	No

chronology (noun)	chronological (noun)
the determination of the actual temporal sequence of past events
a record of events in the order of their occurrence
an arrangement of events in time

chronology (adjective)	chronological (adjective)
	relating to or arranged according to temporal order