savourlessness vs flavorlessness

savourlessness and flavorlessness both are nouns.

Word	Noun	Adjective	Verb	Adverb
savourlessness	Yes	No	No	No
flavorlessness	Yes	No	No	No

As nouns, savourlessness and flavorlessness are synonyms defined as:

Other synonyms of savourlessness include flavourlessness, savorlessness, tastelessness.

savourlessness (noun)	flavorlessness (noun)
the property of having no flavor	the property of having no flavor