Shirabe

薄着うすぎ

Common Noun Irregular Noun
English jmdict
1
noun (common) (futsuumeishi)noun or participle which takes the aux. verb surunouns which may take the genitive case particle 'no' being lightly dressed
See also: 厚着 (あつぎ)
そんな薄着ではかぜをひきますよ。
You'll catch cold in such thin clothing.