noninterruption (?.)

• ceaselessness
• chattering
• constancy
• constant flow
• continualness
• continuity
• incessancy
• oscillation
• perpetuity
• pulsation
• quick fire
• rapid fire
• rapid recurrence
• rapid succession
• rapidity
• regularity
• repetition
• staccato
• steadiness
• stuttering
• sustainment
• tattoo
• unintermission
• uninterruption
• vibration