not capable of being distinguished or differentiated; "the two specimens are actually different from each other but the differences are almost indistinguishable"; "the twins were indistinguishable"; "a colorless person quite indistinguishable from the colorless mass of humanity"
Siberian peasant monk who was religious advisor in the court of Nicholas II; was assassinated by Russian noblemen who feared that his debauchery would weaken the monarchy (1872-1916)