Synonyms of the word

ungraded

• adj. Not graded; having no grade.

dirt

• n. Soil or earth.
• n. A stain or spot (on clothes etc); any foreign substance that worsens appearance.
• n. Previously unknown facts, or the invented "facts", about a person; gossip.
• n. (figuratively) Meanness; sordidness.
• n. (mining) In placer mining, earth, gravel, etc., before washing.
• v. (transitive, rare) To make foul or filthy; soil; befoul; dirty.

nonhierarchical

• adj. Classified or arranged so that a group or person has the same authority as everyone else; not hierarchical.

unimproved

• adj. Not improved.

unordered

• adj. Not having been ordered.
• adj. Not in any sorted order.

unranked

• adj. Not ranked.