questionable
Definitions
Doubtful as regards truth or quality.
Not clearly honest, honorable, or moral.
Open to dispute or debate.
Examples
The company's decision to cut safety corners for profit is highly questionable.
He gave a questionable excuse for why he was late to the meeting again.
Synonyms
dubious suspicious uncertain debatable unreliable shady equivocal
Antonyms
certain reliable indisputable definite trustworthy proven unquestionable