The phrase "reckless gamble" means taking a risky and impulsive action without considering the potential consequences or dangers involved. Full definition
I don't believe people are up for a dangerous and reckless gamble with our economic future. (labour-uncut.co.uk)
Jamie Dimon had previously reported this fact in one of his first conference calls with analysts on the topic of the London Whale losses, but corporate media failed to focus on this aspect, despite a meltdown of Wall Street just four years prior because of reckless gambles inside institutions housing insured deposits. (wallstreetonparade.com)
Forty years ago, Barbour's desire to uncover the innermost workings of the universe led him to make a seemingly reckless gamble. (discovermagazine.com)