Oblivious usually has to do with not being conscious or aware of someone or something. When used with this meaning, it can be followed by either to or of: The cat had crept in silently, and we were …

OBLIVIOUS definition: unmindful; unconscious; unaware (usually followed by of orto ). See examples of oblivious used in a sentence.

Absorbed in her work, she was totally oblivious of her surroundings. The mayor seems oblivious to the likely effects of the new legislation.

Define oblivious. oblivious synonyms, oblivious pronunciation, oblivious translation, English dictionary definition of oblivious. adj. 1. Lacking conscious awareness; unmindful: oblivious to her surroundings; …

Definition of oblivious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

WordReference Random House Unabridged Dictionary of American English © 2025 ob•liv•i•ous (ə bliv′ ē əs), adj. unmindful; unconscious; unaware (usually fol. by of or to): She was oblivious of his …

Jan 20, 2026 · oblivious (comparative more oblivious, superlative most oblivious) (usually with to or of) Lacking awareness; unmindful; unaware, unconscious of. Your grandmother is completely oblivious …