Definition of paradox
1
: one (such as a person, situation, or action) having seemingly contradictory qualities or phases
2a
: a statement that is seemingly contradictory or opposed to common sense and yet is perhaps true
b
: a self-contradictory statement that at first seems true
c
: an argument that apparently derives self-contradictory conclusions by valid deduction from acceptable premises
3
: a tenet contrary to received opinion
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Merriam-Webster unabridged
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Time Traveler for paradox
The first known use of paradox was in 1540
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