(uncountable) The condition of being insipid; insipidness.
1735, Alexander Pope, The Dunciad, Book I, Notes Variorum, in The Works of Mr. Alexander Pope, Volume 2, London: Lawton Gilliver, p. 98,
Nahum Tate was Poet Laureate, a cold writer, of no invention, but sometimes translated tolerably when befriended by Mr. Dryden. In his second part of Absalom and Achitophel are above two hundred admirable lines together of that great hand, which strongly shine through the insipidity of the rest.
(countable) Something that is insipid; an insipid utterance, sight, object, etc.