Definition of "indistinguishable" []

• Not distinguishable, especially: (adjective)
• Impossible to differentiate or tell apart: indistinguishable twins; markings that make a moth indistinguishable from its background. (adjective)
• Impossible to discern; imperceptible: a sound that was indistinguishable to the human ear. (adjective)
• Difficult to understand or make out; vague: indistinguishable speech. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "And it is what we call indistinguishable from all of the others."
• "Otherwise, a President really is indistinguishable from a dictator."
• "Men and women, all indistinguishable from the creature who had shared its house with Conan -- there were no children, Conan noted -- moved about the village in the same unhurried pace, lugging an empty basket here, dumping a pale of water there."