time-sensitive

American  

[tahym-sen-si-tiv] / ˈtaɪmˌsɛn sɪ tɪv /

adjective

1. (of a product, document, or information) useful or relevant for only a limited amount of time.

   These time-sensitive papers must be signed immediately.

2. Chemistry. having properties that physically change with the passage of time.

   When stored for prolonged periods, time-sensitive chemicals can become extremely hazardous.

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time-sensitive British  

adjective

1. physically changing as time passes

2. only relevant or applicable for a short period of time

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Etymology

Origin of time-sensitive

First recorded in 1925–30; time ( def. ) + sensitive ( def. )

Example Sentences

It reckons these facilities can serve as alternate gateways to Gulf Cooperation Council countries affected by airspace closure for time-sensitive goods such as emergency supplies.

From The Wall Street Journal • Mar. 6, 2026

The Business and Trade Committee had given Royal Mail two weeks to respond to allegations, reported by the BBC, that parcels were being prioritised over letters, resulting in delays to important, time-sensitive mail.

From BBC • Feb. 26, 2026

The scientists found that a developmental signal known as Notch plays an important but time-sensitive role in immune cell formation.

From Science Daily • Jan. 20, 2026

While UPS doesn’t offer pickup or delivery on the holiday, its time-sensitive Express Critical service is available.

From Barron's • Jan. 19, 2026

“Had a time-sensitive dilemma,” I said, “but I managed to figure it out. Sometimes runners-up have good ideas too, you know.”

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas