/ əˈblɪviəs; NAmE / adjective
[ not usually before noun ] oblivious (of / to sth) not aware of sth :
He drove off, oblivious of the damage he had caused.
You eventually become oblivious to the noise.
► ob·livi·ous·ly adverb
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WORD ORIGIN
late Middle English : from Latin obliviosus , from oblivio(n-) , from oblivisci forget.