epical vs epic

epical is not a noun while epic is a noun.

Word	Noun	Adjective	Verb	Adverb
epical	No	Yes	No	No
epic	Yes	Yes	No	No

As adjectives, epical and epic are synonyms defined as:

epical and epic: constituting or having to do with or suggestive of a literary epic

epical (noun)	epic (noun)
	a long narrative poem telling of a hero's deeds

epical (adjective)	epic (adjective)
constituting or having to do with or suggestive of a literary epic	constituting or having to do with or suggestive of a literary epic
	very imposing or impressive; surpassing the ordinary (especially in size or scale)