questionable
1. [ adjective ] subject to question
Examples:

"questionable motives" "a questionable reputation" "a fire of questionable origin"

Related terms: unquestionable alleged alleged doubtful fishy apocryphal self-styled impugnable self-styled debatable equivocal contestable
2. [ adjective ] able to be refuted
Synonyms: confutative refutable confutable
Related terms: deniable
3. [ adjective ] able to be refuted
Synonyms: refutable
Related terms: deniable
Similar spelling:   questionably
  questionnaire
  questioner
  question_time
  question_sheet
  questioning
  question_of_law
  question_master
  questioningly
  question_mark