not the other
Definitions
Used to specify one particular item or person while excluding all others.
A phrase indicating that a choice or identity is singular and distinct from any alternative.
Examples
I want the red apple, not the other one.
You should focus on this task, not the other projects on your desk.
He chose to follow his own path, not the other options presented to him.
Synonyms
the same identical selfsame equivalent uniform indistinguishable one and the same
Antonyms
the other different distinct separate alternative contrary opposite