Denshi Jisho — Online Japanese dictionary

怖い こわい 1: scary; frightening; eerie; dreadful;
2: (Interjection) (I'm) afraid
Common word, Adjective 
怖い顔 こわいかお grim face; angry look
Noun 
怖いもの見たさ こわいものみたさ rubbernecking; the thrill of looking at something scary or unpleasant and wanting to look at it all the more because it is scary or unpleasant
Expression 

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