episodic
Ep`i*so"dic, Ep`i*so"dic*al, a. Etym: [Cf. F. épisodique. See Episode.] Defn: Of or pertaining to an episode; adventitious. -- Ep`i*so"dic*al*ly, adv. Such a figure as Jacob Brattle, purely episodical though it be, is an excellent English portrait. H. James.