1Passiveness; negativity; being unassertive — not proactive or enthusiastic; often appears as 消極的.
彼は消極的な性格で、進んで意見を言わない。
He has a passive personality and doesn't volunteer his opinions.
消極的な態度ではチャンスを逃してしまうことがある。
A passive attitude can sometimes cause you to miss opportunities.
会議での彼の消極さがプロジェクトの進行を遅らせた。
His passivity in the meeting delayed the project's progress.
2Depolarization — a technical term (e.g., in electrochemistry) referring to reduction of polarization or depolarizing of an electrode.
実験では電極の消極が観察された。
Depolarization of the electrode was observed in the experiment.
この装置は消極を防ぐための処理を行う。
This device performs treatment to prevent depolarization.