insistence

noun3

1. •
   The state of being insistent.

   • He made gourd-rattles (known in ever so many parts of the world) in which he rattled dried seeds or small pebbles with a most beguiling and rain-like insistence[.] — 1920
2. •
   An urgent demand.
3. •
   The forcing of an attack through the parry, using strength.