Difference between Unreceptive and Closed

Unreceptive

Part of speech: adjective

Definition: not receptive

Closed

Part of speech: verb

Definition: (physical) To remove a gap.

Part of speech: adjective

Definition: Sealed, made inaccessible or impassable; not openNot operating or conducting tradeNon public (as in closed source)Having an open complement.Such that its image under the specified operation is contained in it.Lacking a free variable.

Example sentence: You learn if you mind stay open. And once you can't learn no more, your mind must be closed. Life goes on and you keep growing, you know?