[{"Bold_text": "adjective", "List Items": ["such as to cause fright ;dreadful, terrible, or alarming:A frightful howl woke us.Synonyms: awful , fearful Antonyms: delightful", "horrible, shocking, or revolting:The storm did frightful damage.Synonyms: gruesome , ghastly , horrid , dread , hideous Antonyms: delightful", "Informal.unpleasant; disagreeable:We had a frightful time.", "Informal.very great; extreme:That actor is very talented but a frightful ham."]}]