expeditiously

Expeditiously is an adverb that describes action performed with speed and efficiency, without unnecessary delay. It often implies careful planning and effective execution in addition to rapidity.

The base form is the adjective expeditious, and expeditiously is formed by adding the -ly suffix. The word traces back to the Latin expeditus, meaning unimpeded or ready for action, and entered English via Old French and Middle English.

In formal writing, expeditiously is commonly used in legal, administrative, or governmental contexts, where timely processing or resolution is emphasized. It connotes not only speed but orderly, well-organized efficiency.

Examples: “The agency will review applications expeditiously.” “The court shall expeditiously hear the matter.” In everyday usage, the term may sound overly formal in casual prose and can be replaced by more direct adverbs such as promptly or quickly depending on context.

Related terms include expeditious and expeditiousness, while antonyms include slowly and sluggishly.