takes する

Onomatopoeic or mimetic word.
  1. to fret (over), to brood (about), to mope, to worry.

adverb, adverb taking the と particle

Onomatopoeic or mimetic word.
  1. worriedly, (fretting) constantly, (worrying) over this and that, (obsessing) to no end.

Variations

Pronunciation Kanji Kana Is Common
 
 
 
 
くよくよ
 
 
 
 
クヨクヨ