When searching for synonyms for the phrase "deadly ladies", one could consider phrases such as "lethal women" or "dangerous dames". The term "femme fatale" is often used to describe a woman who is both alluring and deadly. Other options include "killer queens", "murderous mavens", or "fatal femmes". These phrases all evoke a sense of danger and intrigue, highlighting the idea of women who are capable of causing harm or even death. While these terms may seem outdated or overly dramatic, they continue to be used in popular culture, literature, and media to describe strong, confident women who are not to be underestimated.