infrastructuraladjective
uk/ˈɪnfrəˌstrʌktʃərəl/usECONOMICS relating to the basic systems and services that are needed to support an economy, organization, etc.:
infrastructural development/improvement Spending on health, education, construction and other infrastructural development rose roughly ten-fold.
The $5 billion international airport is one of the various major infrastructural projects being built.