fluidness

(noun) the property of flowing easily. Synonyms: fluidity, liquidity, liquidness, runniness. Examples: "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."

(noun) a changeable quality. Synonyms: fluidity. Examples: "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."