With Theresa May still fighting for a deal with the EU, nearly half of the country are less optimistic.
According to a new survey, 44% of Brits believe Brexit will happen without a deal in place.
More surprisingly, it is Tory Leave voters who think that a deal will be struck by the Prime Minister, who has signalled a possible extension to the transition period.
According to the survey by the Policy Institute at King’s College London and Ipsos MORI, 53% of Conservative Leave voters think Britain will leave with a deal.
This compares with 54% of Labour Remain voters who believe a no-deal Brexit is the most likely scenario.
Just three in ten of all voters expect a deal to be secured by the time Brexit day rolls around in March 2019.
Elsewhere in the survey, just 14% of people believe they will see a personal economic benefit from Brexit over the next five years, while 31% expect their standard of living to decrease.
Some 39% of the public expect the UK economic growth rate to decrease as a result of Brexit – 64% of Remain supporters and 17% of Leave supporters.
Professor Bobby Duffy, Director of the Policy Institute, said: ‘There is little general optimism about the outcome of the Brexit negotiations and the ongoing impact of leaving the EU, particularly on living standards and economic growth.
“But as with other aspects of our relationship with Europe, our predictions reveal the huge divisions in the country ‘ different groups see the future very differently, with Conservative and Leave supporters more optimistic that Brexit will have little economic impact on the UK, while reducing EU immigration.’