aggradational

• a word derived from aggrade.
  aggrade

  verb (used with object)

  to raise the grade or level of (a river valley, a stream bed, etc.) by depositing detritus, sediment, or the like.

More Suggestions

• aggravating
• aggravatingly
• aggregation
• degradation
• gradation
• intranational
• congregational
• aggravator
• aspirational