infusible

Upper-Intermediate (B2)

IPA: /ɪnˈfjuːzəbl/

KK: /ɪnˈfjuzəbl/

adjective

Definition

Not able to be melted or fused; resistant to heat and unable to change into a liquid form.

Example

Some materials are infusible, meaning they cannot be melted down for recycling.

Conversation

Did you know that some materials are considered infusible?

Really? What does that mean exactly?

It means they can't be melted or fused easily.

That’s interesting! I guess they must be pretty durable then.

Synonyms & Antonyms

Synonyms

meltable

fusible

dissolvable

Antonyms

solid

inflexible

rigid

Root Explanation

Infusible is formed from "in-" (meaning not) and "fusibilis" (from Latin "fundere", meaning to pour or melt). The word describes a substance that cannot be melted or poured, indicating its resistance to fusion.

Memory Tip

Think of 'not' ('in-') being able to 'melt' ('fusibilis') — that's why infusible means something that cannot be melted.

Visually Confused Words

unfusible