"considerably worried" is correct and usable in written English.
You can use it when you want to emphasize the degree to which something is worrying or distressing. For example: "The prospect of a major hurricane hitting the coast had the local residents considerably worried."
He worries considerably less about the day after.
Even participants who were highly anxious about becoming poor would choose to withdraw percentages of their wealth at least equal to the RMD, and sometimes, considerably less because they are worried.
"The parallels are clear enough that they should worry Rolling Stone considerably, if they're not worried already," he said.
His voice began to deepen considerably in his late teens; his family were so worried that they suspected witchcraft, until a witchdoctor explained that this was Mahlathini's natural voice.
If Sino-Indian ties worsen, India could well be firmly drawn towards the US, a possibility that worries Beijing considerably, say analysts.
Households across the nation became considerably less willing to purchase consumer durables and people were more worried about their jobs, incomes and overall livelihood, according to a survey published by the cabinet office Tuesday.
(And yet, if you are in the habit of prioritizing the anxieties of urban existence, you would be right to allocate considerably more time to worrying about getting hit by a car than getting hit by a subway train, even though death by subway train has come to seem rampant in recent months. In 2011, pedestrian fatalities outnumbered deadly hits by subway cars, three to one).
Those with household incomes under $40,000 were considerably more likely to worry about health care than those with higher incomes.
These fraudsters will hardly be worried when the average fine for insurance offences is only £152 - considerably less than the cost of insurance.
In the survey, 55 percent said they were worried about the breadth of personal information that exists about them online, considerably higher than the 33 percent who admitted to being worried in 2009.
