oblivious [ uh- bliv-ee- uh s] Word Origin See more synonyms on Thesaurus.com unmindful; unconscious; unaware (usually followed by of or to): She was oblivious of his admiration. forgetful; without remembrance or memory: oblivious of my former failure. . Archaic inducing forgetfulness. Origin of oblivious 1400–50; late Middle English
forgetful, equivalent to
) to for-get +
-ōsus -ous Related forms ob·liv·i·ous·ly, adverb ob·liv·i·ous·ness, noun self-ob·liv·i·ous, adjective sem·i·ob·liv·i·ous, adjective sem·i·ob·liv·i·ous·ly, adverb sem·i·ob·liv·i·ous·ness, noun un·ob·liv·i·ous, adjective un·ob·liv·i·ous·ly, adverb un·ob·liv·i·ous·ness, noun
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for unoblivious (foll by to ) or of unaware or forgetful Derived Forms obliviously, adverb obliviousness, noun usage
It was formerly considered incorrect to use
oblivious to mean unaware, but this use is now acceptable
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for unoblivious oblivious adj.
mid-15c., from Latin
obliviosus "forgetful, that easily forgets; producing forgetfulness," from oblivion (see oblivion). Meaning "unaware, unconscious (of something)" is from 1862, formerly regarded as erroneous, this is now the general meaning and the word has lost its original sense of "no longer aware or mindful." Properly should be used with to, not of. Related: Obliviously; obliviousness.
Online Etymology Dictionary, © 2010 Douglas Harper