inflatable

American  

[in-fley-tuh-buhl] / ɪnˈfleɪ tə bəl /

adjective

1. capable of being inflated.

2. designed or built to be inflated before use.

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noun

1. an inflatable object, device, or structure, especially a small rubber boat that is inflated with air.

inflatable British  

/ ɪnˈfleɪtəbəl /

noun

1. any of various large air-filled objects made of strong plastic or rubber, used for children to play on at fairs, carnivals, etc

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adjective

1. capable of being inflated

Other Word Forms

Derived Forms

• reinflatable
  adjective

Etymology

Origin of inflatable

First recorded in 1875–80; inflate + -able

Explanation

Something inflatable can be blown up or filled with air. A balloon is inflatable — you can either blow it up, or fill it with helium so that it floats. Car tires are inflatable, and so are beach balls, bicycle inner tubes, floating pool toys, bouncy castles, air mattresses, and some lightweight boats. If you're in a car accident, the inflatable air bag will fill quickly to protect you from hitting the dashboard. The adjective inflatable comes from the Latin inflare, "to blow into or puff up."

Example Sentences

There will also be activities for all ages, including youth soccer clinics, family-friendly games, refreshments, halftime snacks and inflatable attractions such as a giant soccer dart game.

From Los Angeles Times • Jun. 10, 2026

"After a few days playing with her, I bought an inflatable boat big enough for her and her cousins to convince her," Mellado told BBC Sport.

From BBC • May 22, 2026

Jack Johnson headlined the first night and Roger Waters closed the main stage, performing Pink Floyd’s “Dark Side of the Moon” and letting a giant inflatable pig loose in the sky.

From Los Angeles Times • Apr. 6, 2026

Using an inflatable Moon globe, they practiced seeing how the angle of the sun changed the colors and textures of the lunar surface, honing their observation and note-taking skills for the big moment.

From Barron's • Apr. 5, 2026

All around me, grown-ups crane their heads at the strange men walking through the park, but the kids jumping and laughing in the inflatable castle are blissfully unaware.

From "South of Somewhere" by Kalena Miller