When the layout, format, and commands of a software program are scattered, tedious, and very inconvenient to use...such that a user becomes incredibly annoyed and frustrated with it that they cannot think of a phrase to describe--this is THAT phrase. The opposite of User Friendly.
zOMG, I have to go to format --->paragraph ---> font----------->etc..... to make the text bold. What the FUQUA@$$(!???!!! This software is USER MEAN******