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

• 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

Evidently areas of the brain developed during unstructured activities can help expedite the completion of specific tasks. —Alex Knapp, Forbes.com, 27 June 2025

Research shows that unstructured playtime helps build healthy bodies, increases energy and reduces tension and anxiety, according to the American Psychological Association. —Adrianna Rodriguez, USA Today, 27 June 2025

Male Alzheimer’s caregivers group: The Men’s Breakfast Club is an informal and unstructured gathering of male caregivers. —Joe Rassel, The Orlando Sentinel, 25 June 2025

There’s a whole marketplace structure of unstructured technology toolset vendors today. —Adrian Bridgwater, Forbes.com, 16 June 2025

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