1. (

• doggedness ,
• perseverance ,
• persistence ,
• persistency ,
• tenacity ,
• tenaciousness ,
• pertinacity

) persistent determination ;

2. (

• perseverance ,
• persistence ,
• perseveration

) the act of persisting or persevering; continuing or repeating behavior; "his perseveration continued to the point where it was no longer appropriate" ;