Definition of oblivious adjective from the Oxford Advanced American Dictionary

 

oblivious

 adjective
adjective
NAmE//əˈblɪviəs//
 
[not usually before noun]
 
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not aware of something oblivious (of something) He drove off, oblivious of the damage he had caused. oblivious (to something) You eventually become oblivious to the noise. The couple seemed oblivious to what was going on around them.
obliviously
 
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adverb
See the Oxford Advanced Learner's Dictionary entry: oblivious