自じ己こ同どう一いつ性せいじこどういつせいMeanings1nounself-identity; personal identityA formal, somewhat academic term referring to the sense of being a consistent, unified self over time. Often used in psychology and philosophy.青せい年ねん期きには自じ己こ同どう一いつ性せいの確かく立りつが重じゅう要