What is "mismanaged"

Usage examples of "mismanaged".

The son who had so badly mismanaged Aire Communications he had brought it to its present weakened and crippled state.

M: To me, this is just simply another example of mismanaged youth and certainly what I have reported to you above is another example.

However, Iraqi society could not subsist on these assets forever, and its economy had been badly mismanaged over the previous thirty years.