中ちゅう間かん景けい気きちゅうかんけいきMeanings1nountemporary boom; interim prosperityRefers to a short-lived economic upswing, often between longer cycles or during a transitional period.輸ゆ出しゅつの増ぞう加かによる中ちゅう間かん景けい気きは長ながくは続つづかなかった。