battlemented vs castellated

battlemented and castellated both are adjectives.

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

As adjectives, battlemented and castellated are synonyms defined as:

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

Other synonyms of battlemented include castled, crenelated, embattled.

battlemented (adjective)	castellated (adjective)
having or resembling repeated square indentations like those in a battlement	having or resembling repeated square indentations like those in a battlement
protected with battlements or parapets with indentations or embrasures for shooting through