けんざい健在kenzai
1.

Describes a state of being in which someone is living healthily and without any significant issues, often implying that they are actively engaged in life.

2.

Indicates that someone or something is maintaining their original condition or capabilities, functioning effectively without decline.

3.

Refers to the robustness and vitality of an individual or entity, suggesting they are thriving and unaffected by adverse circumstances.

Example:

彼女の4人の姉妹のうち1人は他界したが、ほかは健在だ。