na-adjective
general; in principle; as a rule
Describes something that is true or applicable in principle, though exceptions may exist. Often used to state a general rule or standard.
原則的には、この部屋は関係者以外立ち入り禁止です。
In principle, this room is off-limits to unauthorized personnel.
彼の意見は原則的に正しいが、細かい点で問題がある。
His opinion is generally correct, but there are issues with the details.
一般的 means 'general' or 'common' in a broader sense, while 原則的 emphasizes adherence to a principle or rule.
Derived from 原則 (principle) + 的 (-like, -in the manner of).