noun, takes する, intransitive verb, adjectival noun or quasi-adjective

  1. dwindling, declining, diminishing, tapering off.
  2. tapering (to a point).

Variations

Pronunciation Kanji Kana Is Common
 
先細り さきぼそり

Contained Kanji Breakdown

before, ahead, previous
セン さき ま.ず (1st, N5)
cow, (牛 variant)
person, (人 variant)
above
ジョウ うえ うわ-
legs radical (no. 10)
ジン ニン がい (Kentei 1)
dainty, get thin, taper
サイ こま.か ほそ.い (2nd, N2)
thread
いと シ (1st, N2)
short thread radical (no. 52)
ヨウ ちいさい (Kentei 1)
little, small
ショウ こ- ちい.さい (1st, N5)
feathered stick, barb radical (no. 6)
ケツ かぎ (Kentei 1)
eight, eight radical (no. 12)
ハチ や はっ (1st, N5)
rice field, rice paddy
た デン たん (1st, N4)