questionable
adjective
1. problematic; open to doubt or challenge.
- questionable motives
- a questionable reputation
- a fire of questionable origin
Similar word(s): contestable, alleged, supposed, apocryphal, debatable, problematic, problematical, doubtful, dubious, dubitable, equivocal, fishy, funny, shady, suspect, suspicious, impugnable
2. able to be refuted
Similar word(s): deniable, confutable, confutative, refutable
Sentences with questionable as an adjective:
- It is questionable if the universe is open or closed.
- Tiffiny's behavior is highly questionable.