ungood, adj. — Green’s Dictionary of Slang

ungood adj.

also double plus ungood

[part of the basic lexicon of Newspeak, the lang. of Orwell’s 1984]

(US) bad.

1983		S. King Christine 169: Someone else yelled. ‘Hey, no! Put that away, man!’ That sounded very much ungood.
1988		Eble Campus Sl. Oct. 3: double plus ungood – very bad.