むな
空
　
し
　
く

adverb

  1. in vain, to no purpose, fruitlessly.

Variations

Pronunciation Kanji Kana Is Common
むな
空
　
し
　
く
 空しく むなしく
むな
虚
　
し
　
く
 虚しく むなしく

Contained Kanji Breakdown

empty, sky, void
そら　クウ　す.く (1st, N4)
hole, aperture, slit
あな　ケツ　けな (6th, N1)
shaped crown, katakana u radical (no. 40)
ベン　メン (Kentei 1)
dot, tick or dot radical (no. 3)
チュ (Kentei 1)
wa-shaped crown radical (no. 14)
ベキ (Kentei 1)
eight, eight radical (no. 12)
ハチ　や　はっ (1st, N5)
craft, construction, katakana e radical (no. 48)
コウ　ク　もく (2nd, N4)