| 1. | (of similar things or occurrences) appearing or happening at irregular intervals in time; occasional: sporadic renewals of enthusiasm. |
| 2. | appearing in scattered or isolated instances, as a disease. |
| 3. | isolated, as a single instance of something; being or occurring apart from others. |
| 4. | occurring singly or widely apart in locality: the sporadic growth of plants. |
sporadic spo·rad·ic (spə-rād'ĭk, spô-) or spo·rad·i·cal (-ĭ-kəl)
adj.
Occurring at irregular intervals.
Occurring singly; not grouped.