Synonyms for density

noun

1. The quality of being solid or heavy

   solidity, thickness, compactness, impenetrability, consistency, incompressibility, impermeability, massiveness, quantity, bulk, mass, substantiality, heaviness, occurrence, frequency, body, concretion, denseness, crowdedness; see also weight 1.

   Antonyms lightness*, rarity, thinness.

2. The measure of an electrical charge

   current density, high frequency, relative frequency, kilowatt, kilocycle, ampere, erg; see also frequency 2.

3. Stupidity

   dullness, obtuseness, ineptitude, stolidity; see stupidity 1.