Antonyms of adj unprecedented

1 sense of unprecedented

Sense 1
unprecedented (vs. precedented) -- (having no precedent; novel; "an unprecedented expansion in population and industry")

precedented (vs. unprecedented) -- (having or supported or justified by a precedent)

Similarity of adj unprecedented

1 sense of unprecedented

Sense 1
unprecedented (vs. precedented) -- (having no precedent; novel; "an unprecedented expansion in population and industry")
       => new, unexampled -- (having no previous example or precedent or parallel; "a time of unexampled prosperity")