adjectival noun or quasi-adjective, noun

  1. thin (air), weak (liquid), dilute, sparse (population), rarefied.
  2. lacking (enthusiasm, consideration, substance, etc.), insubstantial, deficient, tenuous (link).

Variations

Pronunciation Kanji Kana Is Common
希薄 きはく
稀薄 きはく

Contained Kanji Breakdown

hope, beg, request
キ まれ ケ (4th, N2)
mow, cut grass, subdue
ガイ ゲ おさ.める (Kentei 1)
linen, cloth, spread
フ ぬの し.く (5th, N2)
left hand, cliff(厂) variant
towel, hanging scroll, width
キン フク おお.い (11th)
dilute, thin, weak (tea)
うす.い ハク すすき (7th, N2)
grass, grass radical (no. 140)
far and wide
フ ハク あまねし (Kentei 1)
water, water radical (no. 85)
さんずい
to state to, to announce
フ ホ しく
for the first time, not until
ホ フ はじ.めて (Kentei Pre-1, N1)
ten
ジュウ ジッ ジュッ (1st, N5)
month, moon
つき ゲツ ガツ (1st, N5)
dot, tick or dot radical (no. 3)
チュ (Kentei 1)
specialty, exclusive, mainly
セン もっぱ.ら (6th, N2)
ten fields
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
wherefore, a reason
ユウ ユ ユイ (3rd, N3)
day, sun, Japan
ひ にっ ニチ (1st, N5)
number one, line, rod radical (no. 2)
コン シ ジョ
measurement, tenth of a shaku, a little
スン す みき (6th, N1)