Oblivious (adjective)
Syllable division: obliv·i·ous
How to pronounce: UK: /əˈblɪv.i.əs/ US: /əˈblɪv.i.əs/
Meaning: Not being aware (conscious) of someone/something.
Example:
> A lot of people were oblivious to the new virus that was starting to spread.
> While playing his video games, he is completely oblivious to his surroundings.
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Oblivious = careless?
As adjectives there is a difference between careless and oblivious.
Careless is being free from care, while oblivious (usually followed by to or of) is being unaware of something / unconscious of something.
Thank you, Minnette, for your explanations! Mary