retarding

/R IH0 T AA1 R D IH0 NG/
verb
  1. 1

    To keep delaying; to continue to hinder; to prevent from progress

    โ€œretard the march of an armyโ€

  2. 2

    To put off; to postpone.

    โ€œto retard a rupture between nationsโ€

  3. 3

    To be slow or dilatory to perform (something).

  4. 4

    To decelerate; to slow down.

  5. 5

    To stay back.

Source: https://en.wiktionary.org/wiki/retard, https://en.wiktionary.org/wiki/retarding