-es(h)chənəbəl, ÷ -esh(ə)n- adjective
1. obsolete : admitting of being questioned : inviting or seeming to invite inquiry
2. obsolete : liable or amenable to judicial inquiry or action
3. : affording reason for being doubted, questioned, or challenged : not certain or exact : not acceptable immediately or without examination : problematical , uncertain , unsafe
the illustration is questionable but the notion implied may be sound — Samuel Alexander
canners had taken in any questionable type of fruit at top prices — Farmer's Weekly (South Africa)
a highly questionable exercise of executive authority — A.F.Westin
a general storm area … making even a daylight flight a questionable venture — C.A.Lindbergh †1974
4. : attended by well-grounded suspicions of being immoral, crude, false, or unsound : dubious
the propriety … was at least questionable — G.B.Shaw
the habit of living in questionable neighborhoods — M.D.Geismar
a questionable insurance broker — Milton Silverman
Synonyms: see doubtful