occasional
definition: recurring or reappearing from time to time
example:
speech part: adjective
synonyms:
periodic
definition: occurring or appearing at usually irregular intervals
example:
speech part: adjective
synonyms:
episodic
definition: occurring from time to time
example:
speech part: adjective
synonyms:
casual
definition: occurring from time to time
example:
speech part: adjective
synonyms:
casual