Dictionary.com
Thesaurus.com
Synonyms

oblivious

American  
[uh-bliv-ee-uhs] / əˈblɪv i əs /

adjective

  1. unmindful; unconscious; unaware (usually followed by of orto ).

    She was oblivious of his admiration.

  2. forgetful; without remembrance or memory.

    oblivious of my former failure.

  3. Archaic. inducing forgetfulness.


oblivious British  
/ əˈblɪvɪəs /

adjective

  1. unaware or forgetful

"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

Usage

It was formerly considered incorrect to use oblivious to mean unaware , but this use is now acceptable

Related Words

See absent-minded.

Other Word Forms

  • obliviously adverb
  • obliviousness noun
  • self-oblivious adjective
  • semioblivious adjective
  • semiobliviously adverb
  • unoblivious adjective
  • unobliviously adverb

Etymology

Origin of oblivious

First recorded in 1400–50; late Middle English, from Latin oblīviōsus “forgetful,” equivalent to oblīvī(scī) “to forget” + -ōsus -ous ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Except Paul isn’t magic; she waves her red flags high and proud, and the good folks at ABC, Hulu and Disney charged at them with the oblivious desperation of so many trapped, maddened bulls.

From Los Angeles Times • Mar. 21, 2026

Despite acting oblivious in front of the other partygoers, Blair opened up to Sheen when everyone dispersed.

From BBC • Mar. 5, 2026

We rushed into the decision giddy about the project, thrilled to have outflanked our competition at Universal Studios and, alas, oblivious to the potential ramifications.

From The Wall Street Journal • Feb. 19, 2026

In a coffee shop in Greenland's capital Nuuk, Lykke Lynge looked fondly at her four kids as they sipped their hot chocolate, seemingly oblivious to the world's convulsions.

From Barron's • Jan. 25, 2026

With a half smile, I turn back to Taryn, who watches the dancers with longing, oblivious to much else.

From "The Cruel Prince" by Holly Black