副词
1. 马上;立刻;毫不迟缓地
Forthwith means immediately.
1. without delay or hesitation
with no time intervening
e.g. he answered immediately
found an answer straightaway
an official accused of dishonesty should be suspended forthwith
Come here now!
Synonym: immediatelyinstantlystraightawaystraight offdirectlynowright awayat oncelike a shot