disagreeing

/D IH0 S AH0 G R IY1 IH0 NG/
verb
  1. 1

    To fail to agree; to have a different opinion or belief.

    โ€œBob says cats are friendlier than dogs, but I disagree.โ€

  2. 2

    To fail to conform or correspond with.

    โ€œMy results in the laboratory consistently disagree with yours.โ€

Source: https://en.wiktionary.org/wiki/disagree, https://en.wiktionary.org/wiki/disagreeing