questionably

As adverbs the difference between debatably and questionably

is that debatably is in a way subject to challenge or worthy of debate while questionably is in a questionable manner.

As adverbs the difference between questionably and contentiously

is that questionably is in a questionable manner while contentiously is in a contentious manner.

Questionably is a coordinate term of arguably.

As adverbs the difference between arguably and questionably

is that arguably is as can be supported or proven by sound logical deduction, evidence, and precedent while questionably is in a questionable manner.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adverb questionably is

in a questionable manner.