Real Dictionary

stable
a building, usually consisting of stalls, for the lodging of horses or other livestock [...]
a small simple room, as in a prison, convent, or monastery; cubicle [...]
general appearance or outline [...]
the act or an instance of referring [...]
the act or an instance of transforming ideas into words [...]
adjective: If someone has a stable personality, they are calm and reasonable and their mood does not change suddenly.
adjective: If something is stable, it is not likely to change or come to an end suddenly.
adjective: You can describe someone who is seriously ill as stable when their condition has stopped getting worse.