The poor figures could pile further pressure on the European Central Bank to do more to shore up the eurozone's recovery, especially at a time when inflation is way below target.
Though it has little room to cut its benchmark interest rate following last month's reduction to a record low of 0.25 percent, the ECB has other potential tools at its disposal.
It could give banks more long-term, cheap loans so they can lend more. It could even decide to make banks pay to keep funds on deposit at the central bank again, to encourage them to lend rather than hoard cash.
In a report Thursday, ratings agency Standard & Poor's said the eurozone recovery will likely be "slow and uneven" and require the support of the ECB. It predicts that the eurozone economy will contract 0.6 percent this year and expand by just 0.9 percent next year.
"Whatever it opts to do, the ECB will in our view have to play the role of the patient gardener in watering those green shoots that have emerged in the eurozone since the middle of the year," said Jean-Michel Six, S&P's chief European economist.