* Expressing doubt or uncertainty: The politician's promises seemed dubious, considering his past record.
* Questioning the validity or legitimacy: The authenticity of the painting was dubious, prompting further investigation.
* Describing something questionable or suspicious: The company's accounting practices were dubious, raising concerns among investors.
* Expressing a lack of confidence or belief: I have dubious feelings about this investment opportunity, as the risks seem high.
* Describing something of questionable quality or taste: The restaurant's food was dubious, with strange flavors and textures.