inanity (n.)
- absurdity
- agnosticism
- aimlessness
- aridity
- asininity
- barrenness
- blank
- blankness
- buffoonery
- callowness
- colorlessness
- crankiness
- craziness
- deadness
- dreariness
- dryness
- dullness
- dustiness
- eccentricity
- emptiness
- etiolation
- failure
- fatuity
- fatuousness
- fecklessness
- flatness
- flavorlessness
- flimsiness
- folly
- foolery
- foolishness
- frivolity
- frivolousness
- fruitlessness
- futility
- giddiness
- greenness
- heaviness
- hollowness
- idiocy
- idleness
- ignorance
- ignorantness
- imbecility
- impotence
- ineffectiveness
- ineffectuality
- ineffectualness
- inefficaciousness
- inefficacy
- ineptitude
- inexperience
- innocence
- insanity
- insignificance
- insipidity
- insipidness
- invalidity
- jejuneness
- jejunity
- levity
- lifelessness
- lightness
- lunacy
- madness
- meaninglessness
- mildness
- mindlessness
- nescience
- nirvana
- noise
- nonsensicality
- nothing
- nothingness
- nullity
- oblivion
- obscurantism
- paleness
- pallor
- passivity
- pointlessness
- ponderousness
- purposelessness
- queerness
- quietism
- rawness
- savorlessness
- senselessness
- shallowness
- silliness
- simpleness
- simplicity
- slenderness
- slightness
- slowness
- solemnity
- spiritlessness
- staleness
- sterility
- stiffness
- stodginess
- stuffiness
- stupidity
- superficiality
- tastelessness
- tediousness
- thinness
- thoughtlessness
- tranquillity
- triteness
- triviality
- unfamiliarity
- uninterestingness
- unknowing
- unknowingness
- unproductiveness
- unprofitability
- unprofitableness
- unsavoriness
- uselessness
- vacancy
- vacuity
- vacuousness
- vacuum
- valuelessness
- vanity
- vapidity
- vapidness
- void
- weakness
- weirdness
- woodenness
- worthlessness