collateral damage

American  

noun

1. the killing of civilians in a military attack.

2. any damage incidental to an activity.

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collateral damage British  

noun

1. military unintentional damage to civil property and civilian casualties, caused by military operations

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Etymology

Origin of collateral damage

First recorded in 1985–90

Example Sentences

Multiyear conversions often reduce this collateral damage and remain one of the most reliable, low-error strategies for reducing taxes over time.

From MarketWatch • May 8, 2026

This targeted approach allows the immune system to remove threats efficiently while minimizing collateral damage to nearby tissue.

From Science Daily • Apr. 30, 2026

Of course, this is only the beginning of a tit-for-tat spite fest that yields terrible collateral damage.

From Salon • Apr. 23, 2026

Saini says his university did see a slight dip in international admissions after 2023, driven both by tighter visa rules and diplomatic tensions - but calls it "collateral damage" rather than a direct hit.

From BBC • Apr. 14, 2026

She’s nothing but collateral damage in this whole mess, and it makes me feel some kind of way.

From "Dread Nation" by Justina Ireland