The dullness of the day was very depressing compared to the sunshine they had last week.
The opposite of glitter is dullness.
Some words that rhyme with "dullness" are fullness, sullenness, and mulishness.
dullness is how bright a color is, eg dull is very un-bright
Definition of mental dullness; describing your personality and mind set to be bland with no effort to create enlightenment. Eg: a person with a basic brain with not much character has mental dullness
Dullness
Dullness
Constantly uninteresting
Lethargic. No energy, sluggishness, slowness or dullness. (No get up and go)
sharpness Answer: Alert and active
The closest you can get to it is just 'dullness'
the antonym is dullness and spirtlessness.
The vividness or dullness of a color