forthwith

(r) without delay or hesitation; with no time intervening
- he answered immediately
- found an answer straightaway
- an official accused of dishonesty should be suspended forthwith
- Come here now!
at once, immediately, instantly, like a shot, right away, straightaway, straight off, directly, now,

Synonyms

at once immediately instantly like a shot right away straightaway straight off directly now

Words of close approximity