Ungood

From NewspeakWiki

Ungood - Bad. One of the rules of newspeak is that any word can be turned into its antonym by adding the prefix "un-". This allowed the removal of repetitive words such as horrible, terrible, great, fantastic, and fabulous from the language.

"After all, what justification is there for a word which is simply the opposite of some other word? A word contains its opposite in itself. Take "good", for instance. If you have a word like "good", what need is there for a word like "bad"? "Ungood" will do just as well -- better, because it's an exact opposite, which the other is not."