Synonyms of instantly

instantly 1 of 2

adverb

ˈin(t)-stənt-lē 

as in immediately

without delay

showed leadership by reacting instantly to the crisis

Synonyms & Similar Words

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

Antonyms & Near Antonyms

• slowly
• late
• tardily

instantly

2 of 2

conjunction

as in when

just at the moment that

we realized there would be problems instantly we saw the final report

Synonyms & Similar Words

• when
• immediately
• once
• as soon as

Antonyms & Near Antonyms

• after
• since
• directly

Example Sentences

Recent Examples of instantly

Adverb

Instead of pushing users to web portals, brands can run two-way text sessions that confirm setup, activate warranties or resolve issues instantly. — Expert Panel®, Forbes.com, 29 Sep. 2026

The base model of the Campanero modular camping system, the Pah-Pah caught our eye instantly with its compact dimensions and bivy-like wedge tent hovering over top its utility-box lower half. — New Atlas, 29 Sep. 2026

Instead Penny Hardaway became instantly enamored with the shoe when it was informally shown to him during a meeting with Nike. — Ian Servantes, Footwear News, 29 Sep. 2026

The technology lets retailers change prices instantly and saves workers time, but shoppers, advocates and lawmakers are raising concerns; the FTC has warned companies to disclose how personal data affect prices. — Anne D’innocenzio, Los Angeles Times, 28 Sep. 2026