[1] : The Collaborative International Dictionary of English v.0.48

insistence \insist"ence\, n.
   the quality of insisting, or being urgent or pressing; the
   act of dwelling upon as of special importance; persistence;
   urgency.
   1913 webster

[2] : WordNet (r) 2.0

insistence
     n 1: continual and persistent demands syn: insisting
     2: the state of urgently demanding notice or attention; "the
        press of business matters" syn: imperativeness, insistency,
         press, pressure
     3: urgently demanding attention; "the insistence of their
        hunger"; "he pressed his demand with considerable
        instancy" syn: imperativeness, insistency, instancy
see also:
insisting imperativeness insistency press pressure instancy 

[3] : Moby Thesaurus II by Grady Ward, 1.0

66 moby thesaurus words for "insistence":
   abetment, application, assiduity, assiduousness, bulldog tenacity,
   concentration, constancy, demandingness, diligence,
   dogged perseverance, doggedness, encouragement, endurance,
   engrossment, exigency, fidelity, goading, importunacy,
   importunateness, importunity, indefatigability, industriousness,
   industry, insistency, instance, loyalty, needling, obstinacy,
   patience, patience of job, permanence, perseverance, persistence,
   persistency, pertinaciousness, pertinacity, plodding, plugging,
   preoccupation, pressing, pressingness, pressure, pricking,
   prodding, relentlessness, resolution, sedulity, sedulousness,
   single-mindedness, singleness of purpose, slogging, spurring,
   stability, stamina, staying power, steadfastness, steadiness,
   stick-to-itiveness, stubbornness, tenaciousness, tenacity,
   tirelessness, unremittingness, unswerving attention, urgency,
   urging

Insistence >> I Words
Insistence, definition of term: Insistence
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