Missed out is a common phrase, but it can be helpful to have some synonyms to add variety to your writing. One synonym for missed out is "overlooked," meaning something was missed due to lack of attention or awareness. Another is "passed up," which suggests a deliberate decision not to participate. If something was not recognized as an opportunity at the time but later realized as a missed chance, "let slip" or "let pass" can be used. Additionally, "failed to experience" or "didn't get to enjoy" can be used when referring to events or experiences. Expanding your vocabulary with synonyms can enhance your writing and communication skills.