unstructured

adjective un·struc·tured \-ˈstrək-chərd\

: not happening according to a plan : not organized or planned in a formal way

Full Definition of UNSTRUCTURED

: lacking structure or organization: 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

See unstructured defined for English-language learners

1936

Medical Dictionary

adjective un·struc·tured \ˌən-ˈstrək-chərd\

: lacking structure : not formally organized <unstructured psychological tests>

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