miss out

verb2

1. •
   To miss an experience or lose an opportunity, etc. that should not be missed.

   • Anybody who does not try the homemade ice cream is really missing out.
   • He missed out on the chance to date her in high school. Now, she's married.
2. •
   (UK) To leave out, to omit.

   • People often miss out the "l" in "vulnerable".
   • He made a list of children in the class but missed out Sally.