Miss out is a phrase that means to not experience or be involved in something. Synonyms for this phrase can include words such as overlook, skip, pass up, or neglect. These words all convey the similar idea of missing an opportunity or failing to participate in something. Other synonyms for miss out could include words like ignore, disregard, or underestimate. No matter which synonym is used, the essential message is that the person in question has failed to seize an opportunity or be involved in something, and as such has missed out. These synonyms can be useful for writers looking for ways to vary their language and express ideas in different ways.