$ sudo apt-get remove ibus-zhuyin 

Uninstall ibus-zhuyin including dependent package

If you would like to remove ibus-zhuyin and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove ibus-zhuyin 

Use Purging ibus-zhuyin

If you use with purge options to ibus-zhuyin package all the configuration and dependent packages will be removed.

$ sudo apt-get purge ibus-zhuyin 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove ibus-zhuyin 

See Also,