The phrase "heavy setback" is correct and can be used in written English.
It is typically used to describe a significant or severe disappointment or difficulty that someone has experienced. Example: "Despite their hard work and dedication, the team faced a heavy setback when their star player was injured just before the championship game."
Though the Canadian-born architect remains nominally the master planner for the site, this constitutes a heavy setback for his LA-headquartered practice that has already lost half of its staff over the past year.
Amid fears among senior Lib Dems that the party is heading for a heavy setback in next year's general election, the deputy prime minister made clear he had his sights firmly set on remaining in government when he predicted that Britain would experience further coalitions.
Two days before the advance, the battalion suffered a heavy setback when their commanding officer, McSharry, was mortally wounded in a bombardment around Vaire, while trying to rescue a wounded soldier.
But while the Army was gaining the foremost role internally, China suffered heavy setbacks in foreign policy.
The World Bank paper bemoans Africa's standards of governance.Perhaps even more worrying, in the past year or so, three of Africa's leading countries have had heavy setbacks.
Sunday's violence came amid fears that the insurgency has gained new strength after suffering heavy setbacks in US and Iraqi offensives.
The French dominated the first half without seriously threatening to score, one Franck Ribéry effort over the bar apart, and the heaviest setback to befall Scotland was when Darren Fletcher was forced off in the 26th minute with an injury inflicted by the home captain, Patrick Vieira.
The great setback of 1996, when Birt's heavy-handed management reorganisation notoriously kept women away from the top broadcasting posts, was only temporary.
They experience great setbacks.
Tourism and trade, as well as hopes for a peaceful resolution to the country's 18-year-old ethnic conflict, suffered a heavy setback when Tamil rebels made a suicidal attack on the international airport on July 24, destroying a third of the national carrier's fleet.
High viscosity at reservoir conditions is a major setback to heavy crude oil and bitumen recovery and transportation via pipelines.
