Synonyms of forthwith

forthwith

adverb

(ˌ)fȯrth-ˈwith 

as in immediately

without delay

if the fire alarm rings, leave the building forthwith

Synonyms & Similar Words

• immediately
• promptly
• instantly
• now
• directly
• shortly
• soon
• right
• quickly
• incontinently
• away
• straightaway
• instantaneously
• straightway
• suddenly
• at once
• instanter
• right away
• in no time
• right now
• right off
• straight off
• headlong
• presently
• off the bat
• on the spot
• bang
• swiftly
• pronto
• PDQ
• on the double
• abruptly
• rapidly
• speedily
• momentarily
• on a dime
• plumb
• hastily
• freely
• readily
• briskly
• quick
• fast
• unexpectedly
• swift
• apace
• posthaste
• impetuously
• rashly
• punctually
• recklessly
• fleetly
• seasonably
• impulsively
• presto
• opportunely
• anon
• snappily
• full tilt
• exactly

Antonyms & Near Antonyms

• slowly
• late
• tardily

Example Sentences

Recent Examples of forthwith

The patriarch would like the ladies and Coleman to join him forthwith in Mexico; the letter’s bearer – a cold-eyed brute named Amos Turlow – will serve as guide. — Erin Douglass, Christian Science Monitor, 26 Nov. 2025

The first wave of airborne attacks will be launched forthwith. — Anthony Lane, New Yorker, 31 Mar. 2025

Whichever designer first slid that paint job across a boardroom table should be banished forthwith to work on the Sonigenic SHS-series Yamaha Keytar, where there's no chance this dangerously inept individual could make the product look any worse. — New Atlas, 9 Oct. 2024

Accordingly, the Special Master and cartographer are DIRECTED to commence work forthwith on a remedial map. — Mike Cason | [e-mail], al, 5 Sep. 2023

Garland, Weiss, Wolf, and everyone connected to this growing scandal owe the nation answers, forthwith. — The Editors, National Review, 23 June 2023