The British government triggered the two-year exit process but discussions with the EU have made little headway, stoking fears that the country could end up crashing out of the EU in March 2019 without a trade deal.
Carney said Britain's current weakness is a rare experience over the past three decades, noting that the only other times it's trailed the pack were in the depths of the global financial crisis around 2008-9, and following the collapse of an economic boom in the late 1980s that had been fueled by tax cuts and deregulation in financial markets.
Despite the soft growth, Carney reiterated that the central bank stands ready to raise interest rates in "coming months" to keep a lid on rising prices. Inflation has been largely stoked by the Brexit decision, which caused the pound to drop sharply, raising the cost of imported goods like food and energy.
Last week's big hint from the bank's rate-setting panel that it could raise its main interest rate from the current record low of 0.25 per cent as soon as November gave the pound a big lift.
In his speech, Carney said that any increases would be "gradual" and "limited." As a result, the pound gave up some of last week's gains, and was trading 0.6 per cent lower at $1.3511.
"There remain considerable risks to the UK outlook, which include the response of households, businesses and financial markets to developments related to the process of EU withdrawal," he said.