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

Reality competition slipped to 45 from 50; unstructured reality rose to 38 from 36. —Michael Schneider, Variety, 12 June 2026

Schedule one unstructured block per quarter with no evaluation goals. —Monica Cutia, Forbes.com, 11 June 2026

Prioritizing unstructured time allows kids to explore, play, and be creative without pressure. —Hannah Nwoko, Parents, 9 June 2026

The American Diabetes Association notes that even brief periods—three to 15 minutes—of unstructured, non-exercise activity can acutely lower after-meal sugars. —Maggie O'Neill, Verywell Health, 9 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