こうしんこく

後進国
undeveloped country
third world country

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こうしんこく【後進国】

a backward country [nation]. <▲> 低開発国 (a developing country [nation], an underdeveloped country, a less developed country) と言い替えることが多い.

●日本は機密管理の面で後進国だ. In terms of security control, Japan is a backward country. | Japan is behind [backward, undeveloped] in the area of security control.