As adjectives the difference between heavy and weighted
is that
heavy is (of a physical object) having great weight or
heavy can be having the heaves while
weighted is having weights on it.
As verbs the difference between heavy and weighted
is that
heavy is to make heavier while
weighted is (
weight).
As an adverb heavy
is heavily.
As a noun heavy
is a villain or bad guy; the one responsible for evil or aggressive acts.