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)
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)