- stubbornly maintaining earlier positions, beliefs, etc.; not adjusted to new or current situations: an unreconstructed conservative.
- U.S. History. (of Southern states) not accepting the conditions for reinstatement in the Union after the Civil War.
- mainly US unwilling to accept social and economic change, as exemplified by those White Southerners who refused to accept the Reconstruction after the Civil War
adj.1867, “not reconciled to the outcome of the American Civil War,” from un- (1) “not” + past participle of reconstruct. See Reconstruction.