Synonyms of instantaneous

instantaneous

adjective

ˌin(t)-stən-ˈtā-nē-əs 

as in immediate

done or occurring without any noticeable lapse in time

the thunder following the flash of lightning was nearly instantaneous

Synonyms & Similar Words

• immediate
• instant
• rapid
• split-second
• swift
• summary
• straightaway
• quick
• speedy
• prompt
• fast
• hit-and-run

Antonyms & Near Antonyms

• slow
• prolonged
• sluggish
• protracted
• tardy
• dilatory
• deferred
• delayed

Examples Sentences

Recent Examples of instantaneous

Imagine a future where financial transactions are instantaneous, transcending the traditional bottlenecks of speed and security that have plagued the sector for years. —Eric Solis, Forbes, 23 Oct. 2024

The setup served up 500 tokens per second to produce answers that were nearly instantaneous. —Ryan Hogg, Fortune, 1 Oct. 2024

Their connection was instantaneous, and Lori began her signature love bombing. —Lizz Schumer, People.com, 29 Sep. 2024

As a whole, the internet changed the world for the better (instantaneous communication, easier access to a global workforce) despite introducing new challenges (social media addiction, a surge in computer viruses and ransomware). —Syed Ahmed, Forbes, 2 Oct. 2024