a.

1. 忘却的；健忘的[（+to/of）]
   Mother has become quite oblivious after the illness.

   这次病后，妈妈变得特别健忘。

   oblivious old age

   健忘的老年

2. 不注意的，不以为意的[F][（+to/of）]
   The professor kept reading, entirely oblivious of his wife's presence.

   教授继续念他的书，完全没注意到他太太在那儿。

   She was oblivious to what was going on around her.

   她没有注意周围发生的事。

3. 令人忘却的
   I wish an oblivious slumber could help me forget what happened today.

   我真希望昏睡能使我忘却今天发生的事情。

adj.