When faced with a challenging or scary situation, it's natural for our bodies to react with fear. However, some people are able to exhibit calm and composure in the face of danger. If you're looking for synonyms to describe someone who is able to show no shake of fear, words like brave, courageous, unflappable, poised, and unruffled come to mind. These words all convey strength and resilience in the face of adversity. Someone who is unshakeable, steady, or undaunted might also fit the bill. Whatever word you choose, it's clear that showing no shake of fear is a desirable trait that conveys confidence and leadership.