The term "unpatterned" is generally used to describe a surface or object that lacks a definitive pattern or design. Synonyms for this word can include "plain," "unadorned," "simple," "uniform," and "undecorated." These words signify a surface or object that is without any significant detail or decorative elements. Other synonyms for "unpatterned" may include "featureless," "bland," or "monotone." In some cases, the term "unpatterned" may also be used to describe an object that lacks a specific structure, organization, or arrangement, in which case synonyms may include "chaotic," "haphazard," or "disorganized".