Of a motion picture, having an "R rating" from one more motion picture rating authorities, typically meaning it is suitable only for adults.
Not suitable for children, especially due to involving excessive sexual, violent, or rude content
Of a motion picture, having an "R rating" from the Motion Picture Association (MPA), meaning it is suitable only for adults.
Not primitive; not third-world.
Mature.
Containing man-made structures such as roads, sewers, electric lines, buildings, and so on.
Having useful or necessary infrastructure.
Processed and fixed; containing a visible negative (or positive for slide film) image
Advanced, fully formed.