instantaneous

[in-stuhn-tey-nee-uhs]

SEE MORE SYNONYMS FOR instantaneous ON THESAURUS.COM

adjective

occurring, done, or completed in an instant: an instantaneous response.

existing at or pertaining to a particular instant: the instantaneous position of the rocket.

Origin of instantaneous

From the Medieval Latin word instantāneus, dating back to 1645–55. See instant, -an, -eous

Related formsin·stan·ta·ne·i·ty

[in-stan-tn-ee-i-tee, in-stuhn-tuh-nee-] /ɪnˌstæn tnˈi ɪ ti, ˌɪn stən təˈni-/, in·stan·ta·ne·ous·ness, nounin·stan·ta·ne·ous·ly, adverb

Synonyms for instantaneous

SEE MORE SYNONYMS FOR instantaneous ON THESAURUS.COM

1. immediate, sudden, abrupt.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for instantaneously

spontaneously, directly, immediately, pronto, quickly

Examples from the Web for instantaneously

Contemporary Examples of instantaneously

Instantaneously posting and garnering likes or retweets is the goal, as with increased notifications, the better the selfie.
The Selfie Olympics Are Upon Us
Marina Watts
January 8, 2014
The fact that doing so can instantaneously alleviate all our discomfort is hard to resist.
The Science of Breakups
Amir Levine, Rachel Heller
August 3, 2011
Which it goes ahead and does instantaneously, before you even get to the next page.
Twitter's Gangster Spam Trap
Douglas Rushkoff
September 30, 2009

Historical Examples of instantaneously

He sees at one glance and instantaneously all the past, present, and future.
Initiation into Philosophy
Emile Faguet
Smoothly and instantaneously as a shadow Reddin eluded the attack.
Earth's Enigmas
Charles G. D. Roberts
I have never seen a stranger who won my regard so instantaneously.
Ernest Linwood
Caroline Lee Hentz
So instantaneously do they receive and understand God's revelations.
The Faith of Islam
Edward Sell
And instantaneously, as a baby at the breast, she found that all his strength and serenity were hers.
Michael
E. F. Benson

British Dictionary definitions for instantaneously

instantaneous

adjective

occurring with almost no delay; immediate

happening or completed within a momentinstantaneous death

maths

occurring at or associated with a particular instant
equal to the limit of the average value of a given variable as the time interval over which the variable is considered approaches zeroinstantaneous velocity

Derived Formsinstantaneously, adverbinstantaneousness or instantaneity (ɪnˌstæntəˈniːɪtɪ), noun

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

Word Origin and History for instantaneously

instantaneous

adj.

1640s (implied in instantaneously), formed in English from Medieval Latin *instantaneus, from instantem (see instant (n.)) on model of spontaneous. Related: Instantaneousness.