unradtastic 

To be the opposite of radtastic.

Lindsay is so unradtastic

unradtastic by DWagar April 8, 2009

Unfaptastic 

Pornographic visual or auditory material that is so abominable and hideous that it leaves the viewer in an slightly nauseated state. Although the intention prior to viewing the material was for sexual gratification, after reviewing the material, the viewer is often left wishing that he had never bothered to listen to the person who recommended viewing said unfaptastic material.

Rosie had me watch this sarah palin porn with her but it was so unfaptastic that I felt the need to down a beer and bang my head against the wall to get those images out of my mind.

Unfaptastic by dtfromtheOC March 26, 2010

Unfantastic 

When something sucks big time or is bad, missfortunate or terrible. The opposite to 'fantastic'.

1. Tim: omg.. i just got fired from work!
Peggy: That's so unfantastic

2. Look at his jeans.. yuk, they are so unfantastic!

Unfantastic by Potfs September 25, 2005