Antonyms of adj ungraded

2 senses of ungraded

Sense 1
dirt, ungraded -- ((of roads) not leveled or drained; unsuitable for all year travel)

INDIRECT (VIA unimproved) -> improved -- (made more desirable or valuable or profitable; especially made ready for use or marketing; "new houses are springing up on an improved tract of land near the river"; "an improved breed")

Sense 2
ungraded, unordered, unranked -- (not arranged in order hierarchically)

INDIRECT (VIA nonhierarchical) -> hierarchical, hierarchal, hierarchic -- (classified according to various criteria into successive levels or layers; "it has been said that only a hierarchical society with a leisure class at the top can produce works of art"; "in her hierarchical set of values honesty comes first")

Similarity of adj ungraded

2 senses of ungraded

Sense 1
dirt, ungraded -- ((of roads) not leveled or drained; unsuitable for all year travel)
       => unimproved (vs. improved) -- (not made more desirable or valuable or profitable; especially not made ready for use or marketing; "taxes on unimproved land are low"; "unimproved dirt roads")

Sense 2
ungraded, unordered, unranked -- (not arranged in order hierarchically)
       => nonhierarchical (vs. hierarchical), nonhierarchic -- (not classified hierarchically)