sporadic
Definitions
Occurring at irregular intervals or only in a few places; scattered or isolated.
Appearing or happening at irregular intervals in time; occasional.
Examples
The patient experienced sporadic episodes of dizziness throughout the day.
Due to the remote location, the village only receives sporadic internet connectivity.
There was sporadic gunfire in the distance, but the city remained mostly quiet.
Synonyms
occasional infrequent intermittent irregular scattered periodic fitful
Antonyms
frequent constant continuous regular steady perpetual persistent