incomplete
adj.adj. not finished or missing some parts. You use this when something is not whole or lacks the information it needs.
adj. lacking a necessary part, element, or step; not brought to a conclusion or state of entirety.
The puzzle is incomplete because two pieces are missing.
I cannot grade your essay yet because the bibliography is incomplete and missing several sources.
The archaeological record remains incomplete, as centuries of erosion and human interference have destroyed many of the artifacts required to reconstruct the ancient civilization's daily life.
From Middle English incomplete, incompleet, from Late Latin incomplētus, from in- (“un-; not”) + complētus (“complete”), equivalent to in- (“not”) + complete.
Often functions as a predicative adjective after 'be' or 'remain', but can also modify nouns directly.