flavourlessness vs savourlessness

flavourlessness and savourlessness both are nouns.

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

As nouns, flavourlessness and savourlessness are synonyms defined as:

Other synonyms of flavourlessness include flavorlessness, savorlessness, tastelessness.

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