follow Dictionary.com

Stories We Like: A Guide to the Comma

instantaneous

[in-stuh n-tey-nee-uh s] /ˌɪn stənˈteɪ ni əs/
adjective
1.
occurring, done, or completed in an instant:
an instantaneous response.
2.
existing at or pertaining to a particular instant:
the instantaneous position of the rocket.
Origin
1645-1655
1645-55; < Medieval Latin instantāneus. See instant, -an, -eous
Related forms
instantaneity
[in-stan-tn-ee-i-tee, in-stuh n-tuh-nee-] /ɪnˌstæn tnˈi ɪ ti, ˌɪn stən təˈni-/ (Show IPA),
instantaneousness, noun
instantaneously, adverb
Synonyms
1. immediate, sudden, abrupt.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples for instantaneous
  • Forty years ago, instantaneous global communication was possible but costly, and restricted to governments and large corporations.
  • And the full benefits of a cheaper currency have not been instantaneous.
  • Her recovery from respiratory failure is nearly instantaneous.
  • Some scenarios imagine the almost instantaneous failure of the systems that keep the modern world turning.
  • He needed to find a way to make instantaneous color photographs underwater.
  • But exactly how plants manage this nearly instantaneous trick has remained elusive.
  • They made a distinctly odd couple, but their attraction was mutual and instantaneous.
  • Traffic information can be instantaneous and perfectly accurate.
  • It would seem that instantaneous gravitational interaction would severely limit multiple universe ideas, foam, etc.
  • The means of travel are numerous and the communication is instantaneous.
British Dictionary definitions for instantaneous

instantaneous

/ˌɪnstənˈteɪnɪəs/
adjective
1.
occurring with almost no delay; immediate
2.
happening or completed within a moment instantaneous death
3.
(maths)
  1. occurring at or associated with a particular instant
  2. equal to the limit of the average value of a given variable as the time interval over which the variable is considered approaches zero instantaneous velocity
Derived Forms
instantaneously, adverb
instantaneousness, 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
Cite This Source
Word Origin and History for instantaneous
adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for instantaneous

Few English speakers likely know this word

Word Value for instantaneous

13
17
Scrabble Words With Friends

Quotes with instantaneous