emblem vs emblematical

emblem is a noun but emblematical is not a noun.

Word	Noun	Adjective	Verb	Adverb
emblem	Yes	No	No	No
emblematical	No	Yes	No	No

emblem (noun)	emblematical (noun)
special design or visual object representing a quality, type, group, etc.
a visible symbol representing an abstract idea

emblem (adjective)	emblematical (adjective)
	serving as a visible symbol for something abstract