also 稀薄
- na-adjective, noun thin (air); weak (liquid); dilute; sparse (population); rarefied
- lacking (enthusiasm, consideration, substance, etc.); insubstantial; deficient; tenuous (link)
きはく
thin (air)
also 稀薄
高山では空気が希薄になる。 The air is rarefied on high mountains. #173198