mistimed

/M IH0 S T AY1 M D/
verb
  1. 1

    To do at the wrong time; especially to misjudge the timing of coordinated events.

    โ€œI mistimed my leap and fell flat on my face.โ€

adjective
  1. 1

    Done at the wrong time.

    โ€œMy mistimed leap was declared a false start since I leaped before the gun.โ€

Source: https://en.wiktionary.org/wiki/mistime, https://en.wiktionary.org/wiki/mistimed