insignificancy

noun

1. (countable, obsolete, uncountable)Lack of signification; meaninglessness.
2. (countable, uncountable)Unimportance, insignificance.

   “The argument may fairly be extended to women; for, seldom occupied by serious business, the pursuit of pleasure gives that insignificancy to their character which renders the society of the great so insipid.”

3. (countable, uncountable)An insignificant person or thing.