Being an essential and permanent part of something.
Being an included feature that normally comes as an extra.
Constructed as a non-detachable part of a larger structure.
Anything (such as a piece of furniture, or a software feature) that is built in, not added as an extra.
Supplied with what one needs.
Of sound, recorded on a permanent medium.
Resolved; corrected.
Surgically rendered infertile (spayed, neutered or castrated).
Not changing, not able to be changed, staying the same.
Repaired
Attached; affixed.
Chemically stable.
Stationary.
Rigged; fraudulently prearranged.