Definition of bill of attainder in English English dictionary
A legislative determination imposing punishment without trial; prohibited under the United States Constitution
A legislative act pronouncing a person guilty of a crime, usually treason, without trial and subjecting that person to capital punishment and attainder. Such acts are prohibited by the U.S. Constitution
a legislative act finding a person guilty of treason or felony without a trial; "bills of attainder are prohibited by the Constitution of the United States
act of legislature that convicts a citizen of a crime without a trial (illegal according to the U.S. Constitution)