expression, suru verb (irregular)
treat shabbily; handle roughly; neglect
Used when treating a person, animal, or thing without proper care or respect, often implying neglect or rough handling.
彼は部下を粗末にしている。
He treats his subordinates shabbily.
本を粗末にしてはいけません。
You mustn't handle books roughly.
expression, suru verb (irregular)
waste; use wastefully; spend recklessly
Used when resources, money, or opportunities are squandered or not valued.
食べ物を粗末にしてはいけない。
You mustn't waste food.
彼は給料を粗末に使ってしまった。
He recklessly spent his salary.