The phrase "a hidden flaw" is correct and usable in written English.
It can be used to describe an imperfection or defect that is not immediately obvious or visible.
Example: "After thorough testing, we discovered a hidden flaw in the software that could cause significant issues for users."
Alternatives: "an undiscovered defect" or "a concealed imperfection."
But the just-in-time model has a hidden flaw.
Because Kirkuk isn't yet the scene of open combat, the city remains a hidden flaw in the broken Iraqi landscape.
That's not exactly what the chapter is about, though — more like about the operational incapability of the C.I.A. Risen reports on operation Merlin, a special-access program in which the plan was to get a Russian nuclear scientist to pass blueprints for a nuclear weapons component to Iranians — blueprints that would contain a hidden flaw.
For example, Thomas Haeuter, a National Transportation Safety Board investigator who has "kicked the tin" on a score of plane crashes, is now looking at the possibility that the composite used in the tail had a hidden flaw or was somehow repeatedly flexed in a way that damaged it, a phenomenon known as fatigue.
But computer experts says the old electronic voting machines have a hidden flaw that worries them in the event of a very close election.
Wallace proposed that there was a flaw in Taylor's argument, a hidden defect.
"For the crystal bowl has a hidden fatal flaw".
The chapter details an effort by the C.I.A. in 2000 to disrupt Iran's nuclear program by sending a former Russian scientist to give it blueprints for a nuclear triggering device with a hidden design flaw.
One of the book's chapters details a C.I.A. program in 2000 that aimed to disrupt Iran's nuclear research by giving it blueprints for a nuclear device containing a hidden design flaw.
That final revelation, if so florid a word is apt in this context, may still be decades off, if indeed some hidden flaw does not bring the whole logical structure crashing to earth before then.
Remarking on the close agreement of the different studies, Dr. Neta A. Bahcall, a Princeton astrophysicist, said this reinforced confidence that the conclusions are correct, or else everyone has overlooked some hidden flaw.
