The state of lacking meaning; the quality of being meaningless.(noun)
Anything that is meaningless.(noun)
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Use "meaninglessness" in a sentence
"I've just finished an article which addresses some of the issues that have come up in this comments trail, notably the 'meaninglessness' of certain aspects of MMOs."
"Police later recovered a suicide note, in which he wrote about the "meaninglessness" of life."
"The endless parsing of some sections of the Proclamation on the Family, and the possibility of defending sometimes precisely opposite positions with reference to it, suggest that it is a prime example of the sort of "meaninglessness" Orwell is talking about."