flavorlessness vs savourlessness

flavorlessness and savourlessness both are nouns.

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

As nouns, flavorlessness and savourlessness are synonyms defined as:

Other synonyms of flavorlessness include flavourlessness, savorlessness, tastelessness.

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