unlawful vs unconventional

unlawful and unconventional both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unlawful	No	Yes	No	No
unconventional	No	Yes	No	No

As adjectives, unlawful and unconventional are synonyms defined as:

unlawful and unconventional: not conforming to legality, moral law, or social convention

Other synonyms of unlawful include improper.

unlawful (adjective)	unconventional (adjective)
contrary to or prohibited by or defiant of law	not conforming to accepted rules or standards
contrary to or forbidden by law	not conventional or conformist
having no legally established claim	not conforming to legality, moral law, or social convention
not morally right or permissible
not conforming to legality, moral law, or social convention