IPA: /ˌɪnfrəˈstrʌkʧərəl/
KK: /ɪnfrəˈstrʌktʃərəl/
Relating to the basic physical and organizational structures and facilities needed for the operation of a society or enterprise.
The government is investing in infrastructural improvements to enhance public transportation.
Infrastructural → It is formed from "infra-" (meaning below or beneath) and "structura" (from Latin, meaning to build or structure) combined with the suffix "-al" (meaning relating to). The word "infrastructural" refers to something that relates to the underlying framework or foundation of a system.
Think of 'infra-' meaning 'below' and 'structura' meaning 'to build' — this helps you remember that 'infrastructural' relates to the foundational structures that support a system.