Intensifier

In informal, everyday speech, the word "literally" is often used incorrectly as an intensifier.

Tom uses "wicked" as an intensifier.

In New England, the word "wicked" functions as an intensifier.

On the West Coast of the United States, the word "hella" is used as an intensifier, from "hell of a."

“Plus-” and “doubleplus-” are both intensifiers that replace words of different extremities, and the words very and extremely respectively. So words like great, excellent and horrible are rendered redundant in Newspeak, replaced by “plusgood”, “doubleplusgood” and “doubleplusungood” respectively. Note how “un-” has to follow the intensifier prefix.