insistence (n.)
- abetment
- application
- assiduity
- assiduousness
- concentration
- constancy
- diligence
- doggedness
- encouragement
- endurance
- engrossment
- exigency
- fidelity
- goading
- importunity
- indefatigability
- industriousness
- industry
- insistency
- instance
- loyalty
- obstinacy
- patience
- permanence
- perseverance
- persistence
- persistency
- pertinacity
- plodding
- preoccupation
- pressing
- pressure
- pricking
- prodding
- relentlessness
- resolution
- sedulity
- sedulousness
- single-mindedness
- spurring
- stability
- stamina
- steadfastness
- steadiness
- stubbornness
- tenaciousness
- tenacity
- tirelessness
- urgency
- urging
