Noun

• S: (n) insistence, insisting (continual and persistent demands)
• S: (n) imperativeness, insistence, insistency, press, pressure (the state of demanding notice or attention) "the insistence of their hunger"; "the press of business matters"
• S: (n) insistence, insistency (the act of insisting on something) "insistence on grammatical correctness is a conservative position"