frangible.

Designed or liable to break into pieces under impact or stress.

Use it for

Words that belong together

• frangible material
• a frangible seal

On the page

The frangible seal broke before the latch released.

They specified frangible material where an unbroken obstruction would be more dangerous.

Usage notes

Primary category: sensory / description. Forms: Relational or descriptive adjective; more/most only where a natural degree exists. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.