[in-stuh n-tey-nee-uh s]
Origin of instantaneous
SynonymsSee more synonyms on Thesaurus.com
1. immediate, sudden, abrupt.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for instantaneity
- occurring with almost no delay; immediate
- happening or completed within a momentinstantaneous death
- 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
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 instantaneity
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