əˈblivēəs, ōˈ-, äˈ- adjective
Etymology: Middle English, from Latin obliviosus, from oblivion-, oblivio oblivion + -osus -ous
1. : lacking remembrance, memory, or mindful attention : characterized by forgetfulness
oblivious old age
— usually used with of
oblivious of past slights
2. archaic : relating to or associated with forgetfulness
3. : lacking active conscious knowledge or awareness : unnoticing , unaware — usually used with of or to
oblivious to the risk she ran
oblivious of the surrounding crowds
Synonyms: see forgetful