Nonleaded
Part of speech: adjective
Definition: Unleaded.
Lead-free
Part of speech: adjective
Definition: Containing no lead.Containing no tetraethyl lead; unleaded.
Nonleaded as an adjective is unleaded. while Lead-free as an adjective is containing no lead.
Part of speech: adjective
Definition: Unleaded.
Part of speech: adjective
Definition: Containing no lead.Containing no tetraethyl lead; unleaded.
We hope you now know whether to use Nonleaded or Lead-free in your sentence.