Long-standing

The new law has done away with the long-standing custom.

It is difficult to suddenly put aside a long-standing love.

The high-density urban coastal corridor from Washington, DC, north to Boston is one of the most developed environments in the world, containing a massive, complex, and long-standing network of supporting infrastructure. The Northeast also has a vital rural component.

This is a long-standing problem.

Parker Solar Probe will set its sights on the corona to solve long-standing, foundational mysteries of our Sun.

The Roman Space Telescope is set for launch in the next five years and will investigate long-standing astronomical mysteries, such as the force behind the universe’s expansion, and search for distant planets beyond our solar system.

Beyond the current global slowdown, the world faces several long-standing economic challenges.

In interviews with conservative media and talk shows and a January 15 op-ed in The Wall Street Journal, Pack defended his actions, saying he was working to address long-standing security concerns at the agency and perceived liberal bias in VOA content.

I've noticed several Tatoeba admins have recently changed their long-standing profile pics. A seemingly interesting if ultimately irrelevant coincidence.

When Germany’s long-standing chancellor, Angela Merkel, steps down following federal elections later this month, it will mark the end of an era, not only for Germany but also for the European Union.