1. (noun) the quality of being mentally slow and limited

• dumbness
• slow-wittedness

2. (noun) the spatial property of being crowded together

• compactness
• concentration
• density
• tightness

3. (noun) the amount per unit size

• density

1. (noun) the amount per unit size

• absorbance
• optical density
• photographic density
• transmission density
• bits per inch
• bpi
• flux
• flux density
• low density
• rarity
• tenuity
• relative density

1. (noun) the quality of being mentally slow and limited

• stupidity

2. (noun) the spatial property of being crowded together

• spacing
• spatial arrangement

3. (noun) the amount per unit size

• compactness

1. (noun) the quality of being mentally slow and limited

• backward
• feebleminded
• half-witted
• slow-witted
• dense
• dense
• dim
• dim
• dull
• dull
• dumb
• dumb
• obtuse
• obtuse
• slow
• slow

2. (noun) the spatial property of being crowded together

• concentrate
• dense
• dense
• thick
• thick
• tight

3. (noun) the amount per unit size

• dense
• dense
• dense
• heavy
• impenetrable

1. (noun) the spatial property of being crowded together

• dispersion
• distribution