Skimping on something is to provide it in an insufficient or meager amount. If you want to convey the same meaning in different words, there are several synonyms for "skimp on" that you can use. For instance, you could say that someone "cut corners" instead of skimping on a task. Alternatively, you might say that they "slacked off" or "skipped over" something, suggesting that they didn't give it their full attention. Other synonyms for "skimp on" include "scrimp", "stint", "sketchiness", "sparseness", "scantiness", "shortage", "dearth", and "inadequacy". All of these words indicate a lack of fullness or completeness in some way.