Dictionary.com
Thesaurus.com
Synonyms

expeditious

American  
[ek-spi-dish-uhs] / ˌɛk spɪˈdɪʃ əs /

adjective

  1. characterized by promptness; quick.

    an expeditious answer to an inquiry.

    Synonyms:
    rapid, fast, speedy, swift, prompt
    Antonyms:
    deliberate, leisurely, slow

expeditious British  
/ ˌɛkspɪˈdɪʃəs /

adjective

  1. characterized by or done with speed and efficiency; prompt; quick

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of expeditious

First recorded in 1590–1600; exped(ition) + -itious

Explanation

Anything expeditious is speedy and efficient. People like shortcuts because they are expeditious. If you can do things quickly and well, then you're good at being expeditious. In math, there are often many ways to get an answer: the quickest method is the most expeditious. There might be many ways to get home from school, but the fastest is the most expeditious. But there's more to being expeditious than just speed — you have to get a good result too. If you solve a problem quickly but get it wrong, that's not very expeditious.

Keep Reading on Vocabulary.com

Vocabulary lists containing expeditious

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.

See Examples For:

"It was conceptualised when I was the CEO. It needs to be implemented in near real-time in the banking system. Unfortunately, that has not happened," he says, calling for its expeditious execution.

From BBC Apr. 29, 2026

A White House official told Barron’s the administration was working to implement President Donald Trump’s executive order from December, which directed regulators to reschedule marijuana “in the most expeditious manner.”

From Barron's Apr. 22, 2026

Now, however, it’s clear that, at least when it comes to this order, language like “most expeditious manner,” doesn’t necessarily mean that anything is changing anytime soon.

From Salon Feb. 6, 2026

Minnesota Gov. Tim Walz has already said the state will “ensure there is a full, fair, and expeditious investigation to ensure accountability and justice.”

From Slate Jan. 8, 2026

More favors, innocent enough — packages to the mailbox, expeditious disposal of a bumblebee.

From "Typical American" by Gish Jen

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training