Grandfather Paradox Definition
noun
A causality paradox speculated about in theories of time-travel in which traveling back in time would allow one to alter the conditions at the earlier time in such a way as to make current conditions impossible, as by causing the death of one's grandfather, making one's very existence impossible.
American Heritage
(countable) An instance of the grandfather paradox.
Wiktionary
Other Word Forms of Grandfather Paradox
Noun
Singular:
grandfather paradox
Plural:
grandfather-paradoxes
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