INANITY
inanity, senselessness, mindlessness, vacuity, pointlessness
(noun) total lack of meaning or ideas
Source: WordNet® 3.1
Etymology
Noun
inanity (countable and uncountable, plural inanities)
(uncountable) The property of being inane, of lacking material of interest or satisfaction, emptiness.
Something that is inane.
Source: Wiktionary
In*an"i*ty, n.; pl. Inanities. Etym: [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.
Source: Webster’s Unabridged Dictionary 1913 Edition