overhead railway (noun) elevated railroad: railway system operating above roads
Sinonime: actionable,
banned, black-market, bootleg, contraband,
criminal,
crooked, extralegal, felonious,
forbidden,
heavy*,
hot*,
illegitimate,
illicit, interdicted,
irregular, lawless, not approved, not legal, outlawed, outside the law,
prohibited, proscribed, prosecutable, racket,
shady, smuggled, sub rosa,
taboo, unauthorized, unconstitutional, under the table, unlawful, unlicensed, unofficial, unwarrantable,
unwarranted, verboten, violating, wildcat, wrongful
Antonime: allowed, authorized,
ethical,
good, lawful,
legal,
legitimate,
moral, permissible,
right