D defs.my
Entry 1 sense Webster, 1913

Mettlesome

· Met·tle·some · IPA /ˈmɛtəlsəm/
01 a. Full of spirit; possessing constitutional ardor; fiery; as, a mettlesome horse.
  1. 1.
    Full of spirit; possessing constitutional ardor; fiery; as, a mettlesome horse.