希薄
Common
I-adj
Noun
1
adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi)
thin (air);weak (liquid);dilute;sparse (population);rarefied
高く登るにつれて、空気は希薄になる。
As you go up higher, the air becomes thinner.
2
adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi)
lacking (enthusiasm, consideration, substance, etc.);insubstantial;deficient;tenuous (link)
Other forms
稀薄 【きはく】