前ぜん人じん未み到とうぜんじんみとうFreq.FrequencyTop 100,000Meanings1noun which may take the genitive case particle 'no', noununtrodden; unprecedentedyojijukugo (four-character idiom)›Describes a place, field, or achievement that no one has ever reached or accomplished before. Often used in news and formal contexts.その探たん検けん家