posthaste

[pohst-heyst] / ˈpoʊstˈheɪst /

ADJECTIVE

fast

Synonyms

WEAK

at once breakneck directly double-quick expeditious flat-out fleet fleetly full tilt hastily hasty headlong lickety-split pell-mell promptly pronto quick quickly rapid rapidly speedily speedy straightaway swift swiftly

ADVERB

fast

Synonyms

WEAK

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“Anora” fans must catch up with Manning Walker’s debut posthaste.

From Los Angeles Times • Feb. 26, 2025

Unsurprisingly, the birds trashed the room, leaving tour manager John Courage to remove them posthaste.

From Salon • Dec. 22, 2024

Smith will provide all discovery materials in the Jan. 6 case posthaste, as he did in the Mar-a-Lago case.

From Slate • Aug. 2, 2023

But part of the job of Rizzo and his staff is to find players who will help this process posthaste.

From Washington Post • May 24, 2022

Obviously you need to get back to Redwall posthaste.

From "Redwall" by Brian Jacques