Antonyms of adj unsharpened

1 sense of unsharpened

Sense 1
unsharpened -- (not sharpened)

INDIRECT (VIA dull) -> sharp -- (having or made by a thin edge or sharp point; suitable for cutting or piercing; "a sharp knife"; "a pencil with a sharp point")

Similarity of adj unsharpened

1 sense of unsharpened

Sense 1
unsharpened -- (not sharpened)
       => dull (vs. sharp) -- (not having a sharp edge or point; "the knife was too dull to be of any use")