oblivious.
Lacking awareness; unmindful; unaware, unconscious of.
Meaning & usage
Lacking awareness; unmindful; unaware, unconscious of.
Your grandmother is completely oblivious to her surroundings.
Forgetful.
He's hopelessly oblivious, always forgetting his appointments.
Where this word comes from
From Middle English oblivious, from Latin oblīviōsus (“forgetful, oblivious”), formed from oblīvium (“forgetfulness, oblivion”) + -ōsus (“full of, overly, prone to”), from oblīvīscor (“to forget”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.