castellated vs embattled

castellated and embattled both are adjectives.

Word	Noun	Adjective	Verb	Adverb
castellated	No	Yes	No	No
embattled	No	Yes	No	No

As adjectives, castellated and embattled are synonyms defined as:

castellated and embattled: having or resembling repeated square indentations like those in a battlement

Other synonyms of castellated include battlemented, castled, crenelated.

castellated (adjective)	embattled (adjective)
having or resembling repeated square indentations like those in a battlement	having or resembling repeated square indentations like those in a battlement
	prepared for battle
	(of a person) beset by difficulties or conflict