Synonyms for "takes lightly" include terms like underestimates, disregards, trivializes, ignores, dismisses, shrugs off, or belittles. When we say that someone takes something lightly, it means they don't give it the seriousness or attention it deserves, often resulting in negative consequences. For instance, if someone takes their health lightly, they might not prioritize regular exercise, leading to poor fitness levels and potential health problems. Similarly, if one takes their job lightly, they might not take work deadlines seriously, leading to a loss of productivity. In summary, understanding and applying the right synonym of "takes lightly" can help convey the appropriate tone and meaning in various contexts and situations.