What does unruled mean?
Unruled is an adjective most often used of paper or notebook pages that have no printed guide lines, allowing writing or drawing without following a preset grid. It can also be applied more formally to a place, population, or institution that is not effectively governed by an established authority, although that sense is less common and may sound literary. In geometry, an unruled surface is one that does not contain a straight line, a technical use based on “ruled” as the name for surfaces generated by moving a line through space. The everyday distinction is simple: ruled paper carries guide lines, while unruled paper does not; lined paper is similar, but “lined” can also describe marked, bounded, or otherwise bordered spaces. Unruled is therefore especially useful for describing open visual space, while its broader governmental and mathematical senses extend the idea of freedom from imposed lines or order.
adjectiveNot ruled; especially, having no guide lines, as on paper. It can also mean not governed or, in geometry, not containing a straight line.
- Having no ruled lines, especially paper or a page intended for freehand writing or drawing.
- Not subject to effective rule, governance, or administrative authority.
- In geometry, not containing a straight line, as in an unruled or non-ruled surface.
"She drew the initial design on a sheet of unruled paper."
"The architect sketched the floor plan on unruled paper."
"After the government collapsed, the region remained unruled for several months."
"The geometry textbook illustrates a smooth unruled surface."
In geometry, an unruled surface is not a messy sheet of paper; it is a surface containing no straight line at all.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unruled come from?
Unruled is an English formation in which the negative prefix un- is joined to rule in its past-participle form, ruled. Rule comes through Old French from Latin regula, meaning “rule” or “straight line”; the same lineage underlies ruler, regular, and regulate. The compound's sense of paper lacking guide lines reflects rule's association with straight lines and with the ruler used to draw them.
How unruled is actually used
The everyday use refers chiefly to paper without guide lines. The political sense is less common and has a formal or literary tone, while the geometric sense is technical.
Easily confused with unruled
Unruled paper has no guide lines, whereas ruled paper has lines drawn or printed on it; in political contexts, unruled means without effective government, while ruled means governed.