I hate unnecessary waste.

Don’t worry him with unnecessary questions.

She squandered her money on unnecessary expenses.

She frittered away her inheritance on unnecessary purchases.

The budget deficit was precipitated by unnecessary expenses.

Unnecessary negative criticism is a form of emotional abuse.

I don't want to waste money on unnecessary things.

The inflexible deadlines caused unnecessary stress among the team.

The wrong policy led to unnecessary expenditures of financial and material resources.

In his zeal to save money, he cut back on unnecessary expenses.

Let's avoid unnecessary conflicts and just agree to differ when our opinions clash.

In international diplomacy, countries should work together to find peaceful resolutions to conflicts and avoid unnecessary escalations.

Despite the high cost of living, she was able to save money by living frugally and cutting out unnecessary expenses.