Definition of anonymous
1
: of unknown authorship or origin
an anonymous tip
2
: not named or identified
an anonymous author They wish to remain anonymous.
3
: lacking individuality, distinction, or recognizability
the anonymous faces in the crowd … the gray anonymous streets …— William Styron
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Merriam-Webster unabridged
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Time Traveler for anonymous
The first known use of anonymous was in 1563
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