noun, adverb, adverb taking the と particle

  1. grunt, grumble, complaint, mutter. Onomatopoeic or mimetic word.
  2. pimples, spots, eruption, rash.
  3. cutting into small pieces.
  4. simmering.

Variations

Pronunciation Kanji Kana Is Common
 
 
 
 
ぶつぶつ
 
 
 
 
ブツブツ