The International Monetary Fund is painting a bleak outlook for bailout-dependent Greece, where it expects unemployment to stay in the double digits for more than three decades.

An IMF annual report Friday also calls for further debt relief from the country's European creditors going "well beyond" extant proposals if the country's debt mountain is to become sustainable.

Greece's economy is under constant scrutiny from its bailout creditors, the IMF and European governments and institutions.

The left-led government is in negotiations with bailout inspectors on the course of mandated reforms, whose completion would allow release of a 2.8 billion euro ($3.14 billion) rescue loan installment.

The country has depended on bailouts since 2010, in return implementing successive spending cuts and reforms that improved fiscal stewardship but left Greek society in tatters.