Antonyms of adj precedented

1 sense of precedented

Sense 1
precedented (vs. unprecedented) -- (having or supported or justified by a precedent)

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")

Similarity of adj precedented

1 sense of precedented

Sense 1
precedented (vs. unprecedented) -- (having or supported or justified by a precedent)