D defs.my
Entry 3 senses Webster, 1913

Inanity

/ĭ-năn′-ĭt-ē/ · In·an·i·ty · IPA /ɪˈnænɪti/
01 n. Inanition; void space; vacuity; emptiness.
pl. Inanities ((#))
  1. 1.
    Inanition; void space; vacuity; emptiness.
  2. 2.
    Lack of seriousness; aimlessness; frivolity.
  3. 3.
    An inane, useless thing or pursuit; a vanity; a silly object; -- chiefly in pl.; as, the inanities of the world.