Italian Etymology From questionare + -abile. Pronunciation IPA(key): /kwe.stjoˈna.bi.le/ Rhymes: -abile Hyphenation: que‧stio‧nà‧bi‧le Adjective questionabile (plural questionabili) questionable Descendants → Maltese: kwestjonabbliWikiwand - on Seamless Wikipedia browsing. On steroids.