Assertive and Persistent

adjective

• Aggressively self-assured.
  • usage: "an energetic assertive boy who was always ready to argue"; "pointing directly at a listener is an assertive act"
  • synonyms: self-asserting, self-assertive

adjective

• Never-ceasing.
  • usage: "the relentless beat of the drums"
  • synonyms: relentless, unrelenting
• Continually recurring to the mind."haunting memories"; "the cathedral organ and the distant voices have a haunting beauty- Claudia Cassidy
  • synonyms: haunting
• Retained; not shed.
  • usage: "persistent leaves remain attached past maturity"; "the persistent gills of fishes"
  • synonyms: lasting
• Stubbornly unyielding.
  • usage: "dogged persistence"; "dour determination"; "the most vocal and pertinacious of all the critics"; "a mind not gifted to discover truth but tenacious to hold it- T. S. Eliot; "men tenacious of opinion"
  • synonyms: dogged, dour, pertinacious, tenacious, unyielding

• (a.) Inclined to persist; having staying qualities; tenacious of position or purpose.
• (a.) Remaining beyond the period when parts of the same kind sometimes fall off or are absorbed; permanent; as, persistent teeth or gills; a persistent calyx; -- opposed to deciduous, and caducous.