oblivious

From Middle English oblivious, from Latin oblīviōsus (“forgetful, oblivious”), formed from oblīvium (“forgetfulness, oblivion”) + -ōsus (“full of, overly, prone to”), from oblīvīscor (“to forget”).

• IPA^(key): /əˈblɪviːəs/

• Audio (Southern England):

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oblivious (comparative more oblivious, superlative most oblivious)

1. (usually with to or of) Lacking awareness; unmindful; unaware, unconscious of.

   Your grandmother is completely oblivious to her surroundings.

2. (dated) Forgetful.

   He's hopelessly oblivious, always forgetting his appointments.

• cache-oblivious
• obliviously
• obliviousness

• oblivion
• oblivious transfer

• oblyvyous, oblivyows

Borrowed from Latin obliviosus.

• IPA^(key): /ɔbˈlivius/, /ɔbˈliːvius/

oblivious

1. (Late Middle English, rare) forgetful

• oblivion

• English: oblivious

• “oblīviǒus, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.