Dogged

1. adjective

   stubbornly unyielding; ; ; ; - T.S.Eliot

   “dogged persistence”

   Similar: dour, persistent, pertinacious, tenacious, unyielding

2. verb

   go after with the intent to catch

   “The policeman chased the mugger down the alley”

   Similar: chase, chase after, trail, tail, tag, give chase