takes する, intransitive verb, adverb, adverb taking the と particle

Usually written with kana alone.
  1. to feel chilly.
  2. to be afraid, to be frightened, to be nervous, to be anxious, to be worried, to be on edge.

Variations

Pronunciation Kanji Kana Is Common
 
 
 
 
ひやひや
 
 
冷や冷や ひやひや
 
 
 
 
ヒヤヒヤ