Byzantine vs tangled

Byzantine is a noun but tangled is not a noun.

Word	Noun	Adjective	Verb	Adverb
Byzantine	Yes	Yes	No	No
tangled	No	Yes	No	No

As adjectives, Byzantine and tangled are synonyms defined as:

Byzantine and tangled: highly complex or intricate and occasionally devious

Other synonyms of Byzantine include convoluted, involved, knotty, labyrinthine, tortuous.

Byzantine (noun)	tangled (noun)
a native or inhabitant of Byzantium or of the Byzantine Empire

Byzantine (adjective)	tangled (adjective)
of or relating to or characteristic of the Byzantine Empire or the ancient city of Byzantium	in a confused mass
of or relating to the Eastern Orthodox Church or the rites performed in it	highly complex or intricate and occasionally devious
highly complex or intricate and occasionally devious