The phrase "staunch adherence" is correct and usable in written English.
It can be used to describe a strong and unwavering commitment to a principle, belief, or practice.
Example: "Her staunch adherence to ethical standards earned her the respect of her colleagues."
Alternatives: "firm commitment" or "strong loyalty."
In addition to a staunch adherence to principle, Goldman was distinguished by her skills as an orator, and by her reverence for "the complete human being".
One thing that most experts agree on is that the pope is enigmatic: while he seems to espouse liberal values on some days, raising the hopes of progressive Catholics of a changing church, his staunch adherence to conservative doctrine proves that he is not the radical reformer many liberals might wish that he was.
Advocates have been driven by passion, concern for radiographic appearance, staunch adherence to the use of EALs, strong advocacy for patency filing, and the incorporation of cognitive dissonance into their decision-making and proffering (Seltzer & Bender 1965).
First-person multiplayer games, in particular, are notorious for their staunch adherence to genre stereotypes and clichés.
Criticisms of the Common Core curriculum have mostly centered on its staunch adherence to keeping things new, fresh and relevant.
He depended on lucky breaks, eloquence, staunch supporters and, above all, on his zealous adherence to principles and laws.
He had acted as a staunch defender of Puritan orthodoxy, with its zealous advocacy of a "pure," unaffected form of religious worship, its rigid adherence to a simple, almost severe, mode of life, and its conviction of the "natural depravity" of "fallen" man.
Political views: Staunch contrarian.
Staunch Tea Partiers seem to be guided by the worst kind of fundamentalist political extremism — immutable positions derived from a near-religious adherence to self-proclaimed inviolable principles.
We became staunch friends.
Staunch Labour Party supporter.
