persevering Synonyms

diligent unrelenting unflinching tireless tenacious stubborn strong-minded stiff-necked steady steadfast staunch single-minded sedulous unwearied weariless zealous unsleeping unwearying unfaltering hardworking strong-willed on the go hard-working unswerving unflagging unwavering unyielding untiring resolved resolute relentless firm enthusiastic energetic enduring earnest dogged active determined constant conscionable conscientious bullheaded importunate indefatigable purposeful pertinacious persistent persisting patient