Upper-Intermediate (B2)
IPA: /ˌɪn.kəmˈprɛs.ə.bəl/
KK: /ɪnˌkɒmprɪsəbl/
Definition
Something that cannot be made smaller or denser by applying pressure.
Example
Water is often considered an incompressible fluid in physics.
Conversation

Have you ever tried to compress that old sofa in the garage?

No, I haven't. Is it really that bulky?

Yeah, it's just so incompressible that it won't fit in the truck.

Sounds like you'll need a bigger vehicle or just toss it out!
Synonyms & Antonyms
Antonyms
compressible
flexible
pliable
Root Explanation
Incompressible → It is formed from "in-" (meaning not) and "compressus" (from Latin, meaning pressed together). The word describes something that cannot be pressed together or reduced in volume.
Memory Tip
Think of something that cannot be 'pressed together' — 'in-' means not, and 'compressus' means pressed.
Visually Confused Words
uncompressible
compressible
noncompressible
impressible
unimpressible
inexpressible
uncomprehensible
oppressible