adjective Date: 1580 inviting inquiry, liable to judicial inquiry or action, affording reason for being doubted, questioned, or challenged ; not certain or exact ; problematic , attended by well-grounded suspicions of being immoral, crude, false, or unsound ; dubious , see: doubtful ~ness noun questionably adverb
QUESTIONABLE
Meaning of QUESTIONABLE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012