[adj] able to be refuted
[adj] subject to question; "questionable motives"; "a questionable reputation"; "a fire of questionable origin"
Synonyms
alleged(a), apocryphal, debatable, deniable, doubtful, dubious, dubitable, equivocal, fishy, funny, impugnable, in question(p), problematic, problematical, queer, refutable, self-styled, shady, so-called, soi-disant, supposed, suspect, suspicious