viscidness vs ropiness

viscidness and ropiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
viscidness	Yes	No	No	No
ropiness	Yes	No	No	No

As nouns, viscidness and ropiness are synonyms defined as:

Other synonyms of viscidness include cohesiveness, glueyness, gluiness, gumminess, tackiness, viscidity.

viscidness (noun)	ropiness (noun)
the property of being cohesive and sticky	the property of being cohesive and sticky