The phrase "a far more rigid" is correct and usable in written English.
It can be used to compare the level of rigidity of one thing to another, emphasizing a greater degree of rigidity.
Example: "The new regulations are a far more rigid framework than the previous guidelines."
Alternatives: "significantly more strict" or "considerably more inflexible."
The rules governing what constitutes a suitable building for a state school are far more rigid than those for private schools, where lessons may and often do take place in incongruous surroundings such as hastily converted bedrooms.By contrast, successful charter schools in America have occupied former shops, which the schools lease from commercial landlords.
However, whereas this seems the case for three-domain backbone pilins like GG-SpaD, those with a two-domain organization are far more rigid in their structural makeup27,29,41.
In an age when parenting roles were far more rigid and sharply defined, Joe's idea of being a loving, caring and responsible father was to bring home the paycheck, expect his dinner to be waiting on the table, and to be stern, tough, and no nonsense with their children, especially their sons.
If they are someone you admire, it's fine to ask for a quick signature; but comprehend that their schedule is far more rigid than yours, and in most cases you may be on holidays but they are actually at work.
The doctors say that their being held to far more rigid standards of scrutiny than white doctors have had a noticeable chilling effect on the medical practices of many of the doctors.
His commitment to the latter formation this season has seemed far more rigid, and fans are beginning to ask whether greater variety might be required.
Even as gender roles have changed for younger people, with women entering the workforce in record numbers, older Japanese have remained far more rigid.
Kaine and other Senate Democrats have said the Education Department created eligibility criteria that are far more rigid than anything Congress envisioned.
A completely new frame design, with more cross members for stiffness, and a high-tech manufacturing process that reduces the numbers of welds and stress points, make the TrailBlazer and Envoy far more rigid, with fewer rattles.
