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

Start by auditing your current interoperability matrix, ensuring your EHR can natively ingest and normalize external unstructured data rather than just storing it as dead PDFs. — Kat Marie Alvarez, Forbes.com, 26 June 2026

At Prisk Elementary, students have four periods of play a day, varying between structured and unstructured play to prod early childhood development — how to take a turn, how to invite play, how to accept that invitation, Hickox said. — Cierra Morgan, Los Angeles Times, 18 June 2026

But with that seventh shuffle, the deck suddenly tips into a highly unstructured state. — John Pavlus, Quanta Magazine, 17 June 2026

Reality competition slipped to 45 from 50; unstructured reality rose to 38 from 36. — Michael Schneider, Variety, 12 June 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