нелегально означает в английский

cash in hand▼(in a manner receiving direct payment)
adverb
[UK: kæʃ ɪn hænd] [US: ˈkæʃ ɪn ˈhænd]

illegally▼(in a manner contrary to the law)
adverb
[UK: ɪ.ˈliː.ɡə.li] [US: ˌɪ.ˈliː.ɡə.li]