The phrase "costly without" is grammatically correct and can be used in written English.
It means that something is expensive or financially burdensome in the absence of something else. Example: "Traveling to Europe can be costly without proper planning and budgeting."
Such mortgages might vanish, or become too costly, without some form of guarantee.
This experience suggests that providing reliable off-grid electricity supply is possible but is costly without suitable capital subsidies.
You should come and watch comedy in Edinburgh this summer because, frankly, the Olympics would depressing and very costly without anyone watching.
Meanwhile, the White House economic team was peddling its tired line that the administration's tax cuts, which were costly without being effective as a stimulus for hiring, had helped bring about an 11th consecutive month of job growth.
He said hospitals told him that it would be unethical to accept free labor, or that training him would still be too costly without additional money for malpractice insurance and benefits.
Anyone travelling to the Channel Islands, for example, will not be covered for medical treatment by their European Heath Insurance Card (EHIC) or the NHS, so falling ill could be costly without medical cover.
Connecticut challenged its financing provisions, saying it imposed costly demands without providing adequate financing.
Time and time again, privatisation – which now comes in many guises – is shown to be less efficient and more costly, and without a genuine transfer of risk.
They are costly: redundancies "without just cause" attract a fine of 4% of the total amount the worker has ever earned, for example.
Based in Troy, Mich., CART sued Heitzler on Tuesday in United States District Court in Detroit, saying he committed the league to a series of costly contracts without the board's approval.
"Unless you are actually a builder yourself," said Margot Jacqz, a recruiter for architecture and design firms in New York, "I suspect that you can make a lot more costly mistakes without a professional, though you will not always know it".
