Without an inner lining or covering.

Lacking visible lines or markings.

Not organized in a linear manner.

Unmarked by rules or boundaries; freeform.

Non-structured, lacking defined shapes or outlines.

Referring to fabric that is unlined internally."

Lacking internal lining or covering.

Unfinished surface without fabric layer.

Document not formatted with borders/edges.

Item devoid of protective inner material.

Paper that is plain, unruled for writing.