Superfluous: Pronunciation: su-'p&r-flü-&s
Etymology: Middle English, from Latin superfluus, literally, running over, from superfluere to overflow, from super- + fluere to flow
1 a : exceeding what is sufficient or necessary : EXTRA b : not needed : UNNECESSARY
2 obsolete : marked by wastefulness : EXTRAVAGANT
Superflivolous: The word I use when I can't remember the word above.