dogged (adj.)
- adamant
- assiduous
- balking
- balky
- bigoted
- bugged
- bullheaded
- case-hardened
- constant
- continuing
- diligent
- dogmatic
- enduring
- faithful
- fanatic
- fretted
- harassed
- hardheaded
- harried
- haunted
- headstrong
- immutable
- inalterable
- indefatigable
- indomitable
- industrious
- inexorable
- insistent
- intolerant
- invincible
- lasting
- loyal
- mulish
- needled
- obdurate
- obstinate
- opinionated
- overzealous
- patient
- permanent
- persevering
- persistent
- persisting
- pertinacious
- pestered
- pigheaded
- plodding
- preoccupied
- ragged
- rapt
- relentless
- resolute
- restive
- rigid
- sedulous
- self-willed
- set
- single-minded
- sleepless
- stable
- steadfast
- steady
- stiff-necked
- strong-willed
- stubborn
- sulky
- sullen
- teased
- tenacious
- tireless
- tormented
- unbending
- unconquerable
- uncooperative
- undaunted
- undiscouraged
- unfailing
- unfaltering
- unflagging
- unflinching
- uninterrupted
- unregenerate
- unrelenting
- unremitting
- unsleeping
- unswerving
- untiring
- unwavering
- unwearied
- unwearying
- vexed
- willful
- worried
