Antonyms of adj underivative

1 sense of underivative

Sense 1
underivative -- (not derivative or imitative; "a natural underivative poet")

INDIRECT (VIA original) -> unoriginal -- (not original; not being or productive of something fresh and unusual; "the manuscript contained unoriginal emendations"; "his life had been unoriginal, conforming completely to the given pattern"- Gwethalyn Graham)

Similarity of adj underivative

1 sense of underivative

Sense 1
underivative -- (not derivative or imitative; "a natural underivative poet")
       => original (vs. unoriginal) -- (being or productive of something fresh and unusual; or being as first made or thought of; "a truly original approach"; "with original music"; "an original mind")