The term "skimping on" has a negative connotation, inferring that someone is being cheap or not putting enough effort into something important. Synonyms for "skimping on" include cutting corners, scrimping, pinching pennies, being stingy, neglecting, withholding, scrimping and saving, economizing, and being frugal. These words imply a lack of generosity and an unwillingness to fully invest in a task or project. Using these alternative words instead of "skimping on" can add nuance and variety to your vocabulary, while also making your writing more engaging and impactful.