The phrase "fraught with peril" is often used to signify danger or risk, and using synonyms can help convey similar meanings with more variety and nuance. Alternatives include "loaded with danger," "rife with hazards," "full of jeopardy," "swarming with risks," and "teeming with threats." Variations on these synonyms can also be employed, such as "fraught with perilous consequences" or "fraught with significant risk." These alternate phrases can add depth and texture to your writing, making it more engaging and varied. When choosing synonyms, consider the context and tone of the writing to ensure the phrase fits seamlessly within the text.