Antonyms of verb aggrade

1 sense of aggrade

Sense 1
aggrade -- (build up to a level by depositing sediment)
       Antonym of degrade (Sense 1)
      => degrade -- (reduce the level of land, as by erosion)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb aggrade

1 sense of aggrade

Sense 1
aggrade -- (build up to a level by depositing sediment)
       => grade -- (level to the right gradient)