reasonableness vs tenability

reasonableness and tenability both are nouns.

Word	Noun	Adjective	Verb	Adverb
reasonableness	Yes	No	No	No
tenability	Yes	No	No	No

As nouns, reasonableness and tenability are synonyms defined as:

reasonableness and tenability: the quality of being plausible or acceptable to a reasonable person

Other synonyms of reasonableness include tenableness.

reasonableness (noun)	tenability (noun)
goodness of reason and judgment	the quality of being plausible or acceptable to a reasonable person
moderation in expectations
the property of being moderate in price or expenditures
the quality of being plausible or acceptable to a reasonable person
the state of having good sense and sound judgment