As an adjective wicked
is evil or mischievous by nature or
wicked can be having a wick.
As an adverb wicked
is (slang|new england|british) very, extremely.
As a noun wicked
is people who are wicked
[oxford dictionary [http://wwwoxfordadvancedlearnersdictionarycom/dictionary/wicked_2]].
As a verb wicked
is (
wick).
As a proper noun coward is
.