I want to uninstall acroread that I downloaded from adobe's website and installed. How can I do that?
Or if that still doesn't work and returns
Package acroread is not installed, so not removed you can try
sudo apt-get purge adobereader-enu && sudo apt-get autoremove.
(Taken from http://ubuntuforums.org/showthread.php?t=1453166#5)