It's highly improbable that...

Meaning

It's very unlikely that...

Examples

• John: 'The chances of winning the lottery are minuscule.'<br>
• Alice: '<b>It's highly improbable that</b> we'll win.'
• John: '<b>It's highly improbable that</b> it will go ahead as planned.'
• Alice: 'Considering the weather forecast, our outdoor event is at risk.'<br>