Definition of well-winded in US English:

well-winded

adjective

rare
  • Able to exercise, speak, etc., for a prolonged period without becoming out of breath; having strong or powerful lungs; not easily exhausted, untiring; (hence occasionally) healthy.

Origin

Late Middle English. From well + winded. Compare well-breathed.

Pronunciation

well-winded

/ˌwɛlˈwɪndɪd/