castled vs embattled

castled and embattled both are adjectives.

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

As adjectives, castled and embattled are synonyms defined as:

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

Other synonyms of castled include battlemented, castellated, crenelated.

castled (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