gumminess vs viscidness

gumminess and viscidness both are nouns.

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

As nouns, gumminess and viscidness are synonyms defined as:

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

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