[su.per.flu.ous] adj [ME, fr. L superfluus, lit., running over, fr. superfluere to overflow, fr. super- + fluere to flow--more at fluid] (15c) 1 a: exceeding what is sufficient or necessary: extra b: not needed: unnecessary
2. obs: marked by wastefulness: extravagant -- su.per.flu.ous.ly adv -- su.per.flu.ous.ness n