unstructured

adjective

un·​struc·​tured ˌən-ˈstrək-chərd 

: lacking structure or organization: such as

a

: not formally organized in a set or conventional pattern

an unstructured question

feel insecure in an unstructured situation

b

: not having a system or hierarchy typical of an organized society

Synonyms of unstructured

• chaotic
• amorphous
• shapeless
• formless
• unformed
• unshaped

Examples of unstructured in a Sentence

Unstructured play time is important for children.

Her life is very unstructured.

Recent Examples on the Web

One of the biggest surprises in retirement is how much unstructured time there is. — Andrew Rosen, Forbes.com, 23 July 2026

Parents don’t need to feel guilty if their teens aren’t constantly busy—unstructured time can foster self-reflection and relaxation. — Melissa Willets, Parents, 16 July 2026

In her view, that framework emerged during a period when many children entered formal school after years of outdoor, unstructured, physical experience. — Jason Phillips, USA Today, 15 July 2026

The Bravo series picked up a nod in the unstructured reality program category, marking its first Emmy nomination following quite the headline-making 10th season. — Mckinley Franklin, HollywoodReporter, 8 July 2026

Word History

First Known Use

1936, in the meaning defined above

Medical Definition

unstructured

adjective

un·​struc·​tured ˌən-ˈstrək-chərd 

: lacking structure : not formally organized

unstructured psychological tests