adjectival noun or quasi-adjective, takes genitive case の

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

adverb

Usually written with kana alone.
  1. only, just, merely.

Variations

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