1. open to doubt; questionable or uncertain
Usage: formal

Examples

• The witness’s testimony was dubitable given his history of lying.
• Her claims about the company’s profits seemed dubitable to investors.
• The authenticity of the ancient manuscript remains dubitable.
• His dubitable motives made everyone suspicious of his proposal.
• The scientist presented dubitable evidence that failed to convince his peers.
• The politician’s dubitable promises were met with skepticism.