Lacking principles or moral restraint; unscrupulous or unprincipled behavior that suggests irresponsibility or looseness.
彼の無節操な発言が会社の評判を傷つけた。
His unprincipled remarks damaged the company's reputation.
無節操に人の噂話を広めるのはよくない。
Carelessly spreading gossip about others is not good.
恋愛で無節操な行動を繰り返すと、信頼を失う。
Repeated unprincipled behavior in relationships causes you to lose trust.