occasional
adjective
occurring from time to time
“took an occasional glass of wine”
occurring or appearing at usually irregular intervals
“episodic in his affections”
“occasional headaches”
Synonymsepisodicoccurring on a temporary or irregular basis
“casual employment”
“a casual correspondence with a former teacher”
Synonymscasualrecurring or reappearing from time to time
“periodic feelings of anxiety”
Synonymsperiodic
Source: WordNet 3.1, Princeton University
