oblivious

Definition

Lacking awareness; unmindful; unaware, unconscious of.

Etymology

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

Example Sentences

• "Your grandmother is completely oblivious to her surroundings."
• "He's hopelessly oblivious, always forgetting his appointments."

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