Dauntless courage refers to the fearless and bold attitude displayed by an individual when facing danger or adversity. Synonyms for dauntless courage include bravery, valour, fortitude, fearlessness, mettle and gallantry. Bravery involves overcoming fear to perform an action, while valour connotes heroic acts during battle. Fortitude involves staying strong and resilient in the face of adversity. Fearlessness means the absence of fear in a challenging situation. Mettle is the ability to persevere and endure in the face of difficulty. Lastly, gallantry involves chivalrous and courteous behavior even in difficult situations. These synonyms help capture the different nuances of dauntless courage, making it a powerful and complex concept.