FLUIDITY

fluidity, fluidness

(noun) a changeable quality; “a charming Oriental fluidity of manner”; “a certain fluidness in his perception of time made him an unpredictable colleague”; “demographers try to predict social fluidity”

fluidity, fluidness, liquidity, liquidness, runniness

(noun) the property of flowing easily; “adding lead makes the alloy easier to cast because the melting point is reduced and the fluidity is increased”; “they believe that fluidity increases as the water gets warmer”

Source: WordNet® 3.1

Etymology

Noun

fluidity (countable and uncountable, plural fluidities)

(uncountable) The state of being fluid rather than viscous

(countable) A measure of the extent to which something is fluid. The reciprocal of its viscosity.

The quality of being fluid or free-flowing

Antonyms

• viscosity

Source: Wiktionary

Flu*id"i*ty, n. Etym: [Cf. F. fluidité.]

Definition: The quality of being fluid or capable of flowing; a liquid, aëriform. or gaseous state; -- opposed to solidity. It was this want of organization, this looseness and fluidity of the new movement, that made it penetrate through every class of society. J. R. Green.

Source: Webster’s Unabridged Dictionary 1913 Edition