ひ
非
えん
円
しん
唇

takes genitive case の, noun

Linguistics terminology.
  1. unrounded.

Variations

Pronunciation Kanji Kana Is Common
ひ
非
えん
円
しん
唇
 非円唇 ひえんしん

Contained Kanji Breakdown

un-, mistake, negative
ヒ　あら.ず (5th, N3)
circle, yen, round
エン　まる.い　まど (1st, N5)
upside-down box radical (no. 13)
キョウ　ケイ (Kentei 1)
lips
くちびる　シン (Early High School, N1)
sign of the dragon, 7-9AM, fifth sign of Chinese zodiac
たつ　シン　とき (Kentei Pre-1, N1)
wild goose, trailing cliff radical (no. 27)
カン　かりがね (Kentei 1)
garment, clothes, dressing
イ　ころも　きぬ (4th, N2)
kettle lid radical (no. 8)
トウ (Kentei 1)
garment, (衣 variant)
mouth
くち　コウ　ク (1st, N4)