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refractory

Upper-Intermediate (B2)

IPA: /rɪˈfræk.təri/

KK: /rɪˈfræk.tər.i/

adjective
Definition

This word describes something that is hard to melt or shape, or someone who is stubborn and does not obey rules or authority.


Example

The refractory child refused to listen to his teacher's instructions.


Conversation
Sloth A
I heard that some materials are really refractory and hard to work with.
Sloth B
Yeah, like certain types of clay that need special techniques.
Sloth A
I guess that makes sense; they must be tough to shape.
Sloth B
Absolutely, but once you get the hang of it, it can be quite rewarding!

Synonyms & Antonyms
Synonyms
unruly
stubborn
obstinate
Antonyms
compliant
docile
manageable
noun
Definition

A material that can withstand high temperatures without melting or breaking down, often used in furnaces and kilns.


Example

The furnace was lined with refractory to handle the extreme heat.


Conversation
Sloth A
I heard they’re using refractory materials in the new oven design.
Sloth B
That’s interesting! What makes them special?
Sloth A
They can withstand really high temperatures without melting.
Sloth B
Root Explanation

Refractory → It is formed from "re-" (meaning again) and "frangere" (meaning to break). The word describes something that is difficult to break or control, hence resistant to authority or treatment.

Memory Tip

Think of something that is 'hard to break' or 'resistant' — 're-' suggests again, and 'frangere' means to break, which helps you remember that refractory refers to something that resists change or control.

Visually Confused Words
prefactory
reformatory
retractor
refectory
prefatory
prefactor
rectory
reactor
Is this page helpful?
Wow, that sounds perfect for baking bread!

Synonyms & Antonyms
Synonyms
insulator
ceramic
resistor
Antonyms
conductor
meltable
softener