persistent Synonyms - page 3

run on unfading nonstop round the clock around the clock eonian undeviating unshakable indelible hard habitual froward frequent firm fierce FAST everlasting evergreen eternal hardened hard-fought indehiscent incompliant importunate implacable imperishable immutable immanent horary headstrong haunting endless driven dour chronic changeless ceaseless calcitrant bullheaded bulldog assiduous aggressive aeonian adamant chronical clamant diuturnal diligent dedicated continuous