substructural

/sʌbˈstrʌktʃərəl/
adjective
  1. Relating to the underlying foundation or support system of a structure, idea, or system.
    • The substructural layers of the road need to be reinforced before paving.
    • Her argument had a substructural flaw that made the whole conclusion weak.
    • The engineers inspected the substructural beams before approving the building design.
Antonyms
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