historical vs ahistorical

historical and ahistorical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
historical	No	Yes	No	No
ahistorical	No	Yes	No	No

historical (adjective)	ahistorical (adjective)
used of the study of a phenomenon (especially language) as it changes through time	unconcerned with or unrelated to history or to historical development or to tradition
of or relating to the study of history
belonging to the past; of what is important or famous in the past
having once lived or existed or taken place in the real world as distinct from being legendary