UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ʌnˈstrʌktʃəd/US:USA pronunciation: respellingUSA pronunciation: respelling(un strukchərd)

WordReference Random House Unabridged Dictionary of American English © 2020
un•struc•tured  (un strukchərd),USA pronunciation adj. 
  1. lacking a clearly defined structure or organization:an unstructured conference; an unstructured school environment.
  • un-1 + structured 1940–45

Collins Concise English Dictionary © HarperCollins Publishers::
unstructured /ʌnˈstrʌktʃəd/ adj
  1. without formal structure or systematic organization
  2. without a preformed shape; (esp of clothes) loose; untailored
'unstructured' also found in these entries (note: many are not synonyms or translations):
Report an inappropriate ad.