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.

Lighton isn’t oblivious to the power imbalance, but he’s made a movie about going forward, not being stuck.

From Los Angeles Times • Feb. 5, 2026

“But on any given day, financial investors are in fact oblivious to fundamental shifts in global alignments or worrying attacks on U.S. institutions,” he writes.

From Barron's • Jan. 14, 2026

The rest of the country seems oblivious to the silver tsunami on the horizon.

From MarketWatch • Jan. 9, 2026

Otherwise, Aled was enjoying the idea of being a father, so he put it down to normal first-time dad nerves, oblivious to the mental health struggles he was yet to face.

From BBC • Dec. 26, 2025

Abay and Dada were oblivious to those around them as they chatted softly to each other.

From "Shooting Kabul" by N. H. Senzai