liquidness vs runniness

liquidness and runniness both are nouns.

Word	Noun	Adjective	Verb	Adverb
liquidness	Yes	No	No	No
runniness	Yes	No	No	No

As nouns, liquidness and runniness are synonyms defined as:

Other synonyms of liquidness include fluidity, fluidness, liquidity.

liquidness (noun)	runniness (noun)
the property of flowing easily	the property of flowing easily
the state in which a substance exhibits a characteristic readiness to flow with little or no tendency to disperse and relatively high incompressibility