questionable

adj

1. Problematic; open to doubt or challenge.

   “It is questionable if the universe is open or closed.”

   “A crude, cold rain was falling heavily; the spring-time presented itself as a questionable improvement.”

   “MAHA went viral across social media and led to an explosion of questionable claims regarding health and wellness.”

2. Of dubious respectability or morality.

   “[…] he had a love of money—a sort of acquisitiveness, that led him into questionable dealings.”

   “Obviously modeled after Ren & Stimpy, it's about a wallaby and his flatulent dog. While some of the humor is pretty funny, some of it is questionable.”

3. (obsolete)Inviting questions; inviting inquiry.

   “Thou com'ſt in ſuch a queſtionable ſhape / That I will ſpeake to thee.”