pull sb's chestnut out of the fire, beard the lion in his den, Jaws of death as the tiger's mouth Seize food, feel like standing upon the edge of an abyss, tread on delicate ground, jitter
Antonym
have plenty of guts, effortlessly; as easy as to blow away the dust; with the slightest effort, just a small effort, Nothing be afraid of, Wusuo scruple, not care a bean (s), Just full of bile, audacious in the extreme; with reckless daring, Daringness Bao Shen, Bold, such as bucket, rush in where angels fear to tread
Containing Phrases
Cautious and conscientious Out_set_ luxury indulge