debils

Etymology
Ultimately borrowed from, via some other European language.

Adjective

 * 1) moron, mentally retarded having impaired mental development
 * 2)  moronic, stupid, foolish
 * 1)  moronic, stupid, foolish
 * 1)  moronic, stupid, foolish

Usage notes
In its colloquial uses, perhaps under the influence of the pronunciation of Russian, this term is often misspelled as debīls, with a long ī.