1. in a manner based on or involving conjecture; by guess or supposition rather than certain knowledge
Usage: formal; often used in academic or analytical contexts

Examples

• The historian conjecturally attributed the manuscript to a 16th-century author.
• We can only conjecturally explain why the ancient civilization disappeared.
• Speaking conjecturally, the missing evidence might support the defendant's alibi.
• The scientist conjecturally proposed that the particles behave differently under extreme pressure.
• Conjecturally, the painting could be worth millions if authenticated.
• He conjecturally suggested that climate change played a role in the species' decline.