Durability

noun the state or quality of lasting or remaining unchanged indefinitely

• The concept of permanence is a key consideration in urban planning and infrastructure development.
• I'm looking for a job with more permanence and stability.
• I don't think this relationship has any real permanence, it's just a fling.
• The artist sought to capture the fleeting beauty of nature in a way that emphasized its contrast with the concept of permanence.

adjective describing something that is skillfully constructed or produced

• The well-made furniture in the showroom was crafted with precision and attention to detail.
• I bought a well-made jacket at the store that's perfect for the winter weather.
• That new phone case is so well-made, it's lit!
• Her well-made argument swayed the jury in her favor during the trial.