The quality or state of being superfluous; overflowingness. / Something superfluous, as a luxury. / (rare) Collective noun for a group of nuns.

In excess of what is required or sufficient.

Any strain of flu that spreads unusually quickly, is unusually virulent, or is unusually unresponsive to treatment.

The state or quality of being superfluous.

In a superfluous manner.

plural of superfluity

plural of superflu

Floating on the surface. / Abundant; in profusion; superfluous.

(obsolete) superfluity

plural of superfluence