ectomorphic

/ˌɛktoʊˈmɔrfɪk/
adjective
  1. Having a body type that is naturally thin, with little body fat and muscle, and a fast metabolism.
    • People with an ectomorphic body type often have narrow shoulders and hips.
    • Her ectomorphic build made her a natural long-distance runner.
    • The ectomorphic teenager struggled to gain weight despite eating large meals.
Synonyms
Antonyms
What does "ectomorphic" mean? | whatsthatwordmean | whatsthatwordmean