In*an"i*ty (?), n.; pl.
Inanities (#). [L. inanitas, fr.
inanis empty: cf. F. inanité. See
Inane.]
1. Inanition; void space; vacuity;
emptiness.
2. Want of seriousness; aimlessness;
frivolity.
3. An inane, useless thing or pursuit; a
vanity; a silly object; -- chiefly in pl.; as, the
inanities of the world.