Living hard can be a challenging road to navigate but luckily there are quite a few synonyms you can use to express this concept. For instance, one synonym for living hard is "pushing the envelope," meaning to exceed the limits. Another synonym that can be used is "living on the edge," which conveys the idea of taking risks and not playing it safe. "Living fast and loose" is another suitable synonym that connotes recklessness and a disregard for consequences. Lastly, "living high on the hog" refers to a lavish and indulgent lifestyle that is only sustainable through significant effort and often comes with consequences.