na-adjective, noun which may take the genitive case particle 'no', noun
Describes actions, procedures, or things that conform to the law. Often used in legal or formal contexts.
その契約は適法だと弁護士が判断した。
The lawyer judged that the contract was lawful.
適法な手段で情報を入手する必要がある。
We need to obtain the information through legal means.