0 doubtful -- tvilende, i tvil, tvilsom
1 probably not honest -- tvilsom, problematisk
dubious behaviour/behavior.
The industry has been plagued with dubious practices, particularly by some of the small, sometimes unregistered, operators.
Furthermore, even for scholars who are dubious about the prospects for generalization or uninterested in its pursuit, theoretical explorations of historical causation remain important.
Commoners were not the only ones who harbored dubious suspicions.
The professional informer was a dubious and thoroughly unreliable dealer in information.
Allusions to classical music appear in similarly dubious contexts.
Regrettably, the closing chapters are a disappointment, with forced and unlikely associations between architects serving dubious editorial purposes.
At times, attempts to merge them result in dubious effects.
If in the compositional process the source is transformed and either gesture or cause becomes dubious, then third-order or perhaps remote surrogacy will be invoked.