insisting

/ɪnˈsɪstɪŋ/
verb
  1. The act of demanding something firmly and repeatedly.
    • He kept insisting that he was right, even when shown the facts.
    • She is always insisting on arriving early to every event.
    • The teacher is insisting that all homework be turned in by Friday.
Antonyms
noun
  1. The act of making a firm and repeated demand.
    • I appreciate your insisting on safety, even if it slows us down.
    • The constant insisting from the children wore their parents down.
    • Her insisting finally paid off when the store agreed to a refund.