The phrase "an uncompromising attitude" is correct and usable in written English.
It can be used to describe a person who is firm in their beliefs or principles and unwilling to make concessions.
Example: "Her uncompromising attitude towards ethical standards earned her both respect and criticism in the industry."
Alternatives: "a rigid stance" or "a steadfast position".
They represent something similar: consistency, seriousness, an uncompromising attitude, and work that is daunting, single-minded, and perfect.
In addition to his decades-long drug addiction, Mr. Liebling had toiled in obscurity and had an uncompromising attitude that sometimes put him at odds with his revolving cast of band mates and producers.
Countries in Central and South America are pressing for reform but are being opposed by nations such as Egypt, Pakistan and Russia, which take an uncompromising attitude to drugs.
Two other newspapers, the Frankfurter Allgemeine Zeitung and Die Welt, have questioned Mrs. Merkel for committing 4.5 billion euros of taxpayer support to the Magna bid, and for adopting an uncompromising attitude toward the negotiations.
The Hamas leadership appears bemused by the willingness to talk to it behind the scenes – as even representatives of the Bush administration did (we were told) – while maintaining an uncompromising attitude to formal negotiations.
The decision reproached Marlborough "for not having given Ms. Bjorn information about earlier transactions and about the works of art at an earlier point in time than May 9 , 1995" and it criticized Bengt Schwitters for adopting an "uncompromising attitude".
He said he sympathized with the archbishop, who had been placed in "an impossible position" by the uncompromising attitude that hard-line conservatives in the communion had taken on homosexuality.
These are the possibility of a rupture with France, not on account of misunderstandings between the two Governments, but because of the uncompromising attitude of a part of the French press, and, in the second place, the threatening attitude of the men working in the coal mines of Asturias and the restlessness of the working classes in general.
Although campaigning is essential to democracy, this degeneration of American politics over the past three decades enables the uncompromising attitude to dominate like an invasive species, spreading beyond its natural habitat of the campaign to the government.
The air force commander, Gen. Ilhan Kilic, vowed recently that the military would fight every effort aimed at "undermining this system and turning the country into an anachronism". Many Turks say that this uncompromising attitude guarantees the survival of the secular republic.
