Shoot the works is an idiom that means to risk everything or to go all out. Some antonyms of this idiom are withdrawing, quitting, surrendering, or giving up. These words imply a lack of courage or willingness to take risks. Other antonyms could be playing it safe, being conservative, or taking a cautious approach. These words suggest a preference for security and avoiding taking big chances. Antonyms of the idiom shoot the works can also be interpreted as a lack of confidence or a fear of failure. The use of these antonyms can create a sense of hesitance, reservation or reluctance when faced with a a challenging opportunity.