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

What starts as a lightweight gel melts into a watery essence on contact, sinking in almost instantly and leaving skin noticeably softer and glassier. — Christa Joanna Lee, Allure, 20 Aug. 2026

Even with finishing touches on the construction still underway, the vibrant space designed by David Thompson Studio (a longtime Indigo Road collaborator) instantly exceeded my expectations. — Colleen McNally Arnett, Southern Living, 20 Aug. 2026

And if MacIntyre pulls the surprise and keeps the job, Brandon instantly becomes a discussion point in many other programs around the country, as a potential 2027 portal prize. — Joe Rexrode, New York Times, 20 Aug. 2026

After meeting on a blind date on July 3, 2016, Prince Harry and Meghan Markle instantly became an item. — Giovana Gelhoren, InStyle, 20 Aug. 2026