verb (used with object), un·stat·ed, un·stat·ing.

Archaic. to deprive (a person) of office or rank.
Obsolete. to deprive (a nation, government, etc.) of its character or dignity as a state.

Origin of unstate

First recorded in 1580–90; un-2 + state
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019