in good health; alive and well; going strong
Used to state that someone (often elderly) is still healthy and active, or that something is still functioning well. Often appears in the form 健在である or 健在だ.
My grandfather is 90, but he's still going strong.
The old factory equipment is still in working order.
My grandfather turned 90, but he's still alive and going strong.
He showed he was still going strong as an active player.
After the earthquake, I confirmed that my family was safe and well.
That old factory is still going strong, continuing to produce parts.