The phrase "hit or miss" refers to something that is uncertain or unpredictable, something that may have varying levels of success or failure. There are several synonyms for this phrase that can be used interchangeably, depending on the context. Some synonyms for "hit or miss" include sporadic, erratic, haphazard, random, uneven, unpredictable, or unreliable. These synonyms suggest that something is not consistent in its performance or occurrence and may be characterized by ups and downs, successes and failures, or inconsistency. Using synonyms for "hit or miss" can add variety to one's language and make communication more precise when describing uncertain situations.