We don't have synonyms for east midlands yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are east midland and west midlands.
(n) :
An administrative region in the geographical centre of England, consisting of the counties of Derbyshire, Nottinghamshire, Leicestershire, Lincolnshire, Rutland and Northamptonshire.
(n) :
An administrative region in the geographical centre of England, consisting of the counties of Derbyshire, Nottinghamshire, Leicestershire, Lincolnshire, Rutland and Northamptonshire.