The phrase "intractable by" is correct and usable in written English
It can be used to describe a problem or situation that cannot be easily managed or resolved by a particular person or method.
Example: "The issues surrounding climate change are often seen as intractable by current political frameworks."
Alternatives: "insurmountable by" or "unmanageable by"
It is a horribly difficult situation, getting more intractable by the day.
But its glaring inadequacies are rendered somehow more infuriating and intractable by the hackneyed image it offers to visitors.
Yes, Egyptians have internal problems with their government and inter-Arab problems with their neighbours, but these problems are made ever more intractable by American intervention.
Many of the codes and problems he deciphered were deemed intractable by the National Security Agency, and his solutions often earned him awards from the government.
But even if high-level negotiation can be hurriedly restarted, the issues that proved insoluble before the precise splitting of sovereignty in East Jerusalem, the right of Palestinian refugees to return, the location of the Jewish settlements in the West Bank to be annexed by Israel have been made ever more intractable by 11 weeks of violence.
However, PPIs were deemed intractable by LMW chemicals during many years.
The findings of Meyer and colleagues [ 8] reaffirm the concern that Gram-negative pathogens could become even more intractable day by day and are paralleled by the findings of Augustin and colleagues [ 41], indicating that, at this time, only imipenem/cilastatin can be considered an adequate single-drug empirical therapy for postoperative peritonitis.
Meanwhile, the insurgency remains dangerous and intractable, fueled by the opium trade and drug trafficking.
For years, the struggle was intractable, but by 1976 he had begun to work on the book that he would never, ever, talk about: Darkness Visible.
April Heinrichs, the new coach of the national team, has given Milbrett the freedom she craved, and she responded tonight with one goal and very nearly three others as the United States dominated Norway, its most intractable rival, by 2-0 in the opening match of the Olympic women's soccer tournament.
To the contrary, the availability of the human genome sequence has provided a breathtaking array of new information and has helped biomedical scientists develop treatment strategies for numerous previously intractable diseases by improving our ability to diagnose disease and to identify risk factors.
