adjectival noun or quasi-adjective, takes genitive case の

Usually written with kana alone.
  1. a little, a few, small, slight, trifling, meager, narrow (margin).

adverb

Usually written with kana alone.
  1. only, just, merely, no more than.

Variations

Pronunciation Kanji Kana Is Common
 
 
 
わずか
 
僅か わずか
 
纔か わずか