ep ‧ i ‧ sod ‧ ic /ˌepəˈsɒdɪk◂, ˌepɪˈsɒdɪk◂ $ -ˈsɑː-/ BrE AmE adjective formal
1 . something that is episodic happens from time to time and then stops for a while, rather than happening all the time:
his episodic involvement in politics
2 . an episodic story or memory is one in which a lot of different events happen that do not follow on from each other