First off, let's define "sporadic" clearly. It’s an adjective that describes something that occurs at irregular intervals or only in a few places; scattered or isolated . Definition Erratic and sporadic are two terms that are often used interchangeably, but they actually have distinct meanings. Erratic refers to something that is unpredictable and inconsistent in behavior or movement. It implies a lack of regularity or pattern. Sporadic , on the other hand, means occurring occasionally, infrequently, or in scattered instances. It suggests that there are gaps or interruptions in the occurrence of something. Frequency One of the key differences between erratic ... sporadic - adjective. occurring irregularly or in a thinly scattered manner in time or space. Check the meaning of the word sporadic , expand your vocabulary, take a spelling test, print practice and more! " Sporadic " means occurring irregularly or infrequently with unpredictable gaps between occurrences, lacking a consistent pattern or schedule. It describes isolated, occasional instances.