forthwith

/fɔrθˈwɪθ/
adverb
  1. Immediately; without delay.
    • Please submit your report forthwith so we can proceed.
    • The police ordered the crowd to disperse forthwith.
    • The contract requires payment to be made forthwith upon signing.
Antonyms
What does "forthwith" mean? | whatsthatwordmean | whatsthatwordmean