- immediately, instantly, straightaway, straight off, directly, now, right away, at once, forthwith, in real time, like a shot - 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!"
- promptly, right away - at once (usually modifies an undesirable occurrence); "he promptly forgot the address"