runniness vs liquidness

runniness and liquidness both are nouns.

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

As nouns, runniness and liquidness are synonyms defined as:

Other synonyms of runniness include fluidity, fluidness, liquidity.

runniness (noun)	liquidness (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