Wiktionary
a. 1 standing up. 2 (context idiomatic English) Able to stand; hence, healthy, well, especially after some previous illness. 3 (context idiomatic English) In a satisfactory (non-physical) condition; happy financially, emotionally etc.
Usage examples of "on one's feet".
The proper manner to make a presentation in a standard military briefing was on one's feet, but the crowded nature of this conference module didn't allow for it.
The proper manner to make a presenta-tion in a standard military briefing was on one's feet, but the crowded nature of this conference module didn't allow for it.
One needed to be very strong even to stand on one's feet at Catanzaro.
The art of persuasion, he held, depended mainly on a marshaling of facts, clarity, conviction, and the ability to think on one's feet.