derail

/dɪˈreɪl/
verb
  1. To cause a train to come off the tracks.
    • A broken rail caused the freight train to derail near the station.
    • Investigators are trying to determine what made the passenger train derail.
    • The engineer applied the emergency brakes to prevent the train from derailing.
  2. To disrupt or cause something to fail or go off course.
    • A scandal threatened to derail his political campaign.
    • Her injury derailed her hopes of competing in the Olympics.
    • The sudden storm derailed our plans for a picnic.
Antonyms
What does "derail" mean? | whatsthatwordmean | whatsthatwordmean