insistence

Noun

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, Edward Carpenter, Pagan and Christian Creeds,...
   • The extreme depth of these channels, and the insistence of the Board of Trade on a headway of 150 ft. for the unrestricted passage of large ships, necessitated a high bridge with two main spans, and a central pier on...
2. An urgent demand.
3. The forcing of an attack through the parry, using strength.