INSIPIDNESS
blandness, insipidity, insipidness
(noun) lacking any distinctive or interesting taste property
boringness, dreariness, insipidness, insipidity
(noun) extreme dullness; lacking spirit or interest
Source: WordNet® 3.1
Etymology
Noun
insipidness (uncountable)
A lack of distinctive, appealing, or energetic character; tastelessness; extreme blandness.
Synonyms
• insipidity, tastelessness, vapidity
Source: Wiktionary
In`si*pid"i*ty, In*sip"id*ness, n. Etym: [Cf. F. insipidité.]
Definition: The quality or state of being insipid; vapidity. "Dryden's
lines shine strongly through the insipidity of Tate's." Pope.
Source: Webster’s Unabridged Dictionary 1913 Edition