straight-off

(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, forthwith, immediately, instantly, like a shot, right away, straightaway, directly, now,

Synonyms

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

Words of close approximity

straight-out