Meaning & use

well insulated

adjective·Everyday

Last updated

UK/ˌwel ˈɪnsjʊleɪtɪd/
US/ˌwel ˈɪnsəleɪtɪd/

Meanings

  1. adjectivenot comparable

    Having thick or effective material that stops heat, sound, or electricity from passing through.

    Grammar: Used after a linking verb or before a noun; it already contains 'well', so you do not add 'very'.

    Patterns

    • be well insulated
    • a well-insulated building
    • well insulated against something

    The new apartment is well insulated, so our heating bills are low.

    They built a well-insulated studio to keep the music from disturbing the neighbors.

    The tank is well insulated against the cold.

  2. adjectivenot comparablefigurative

    Protected from criticism or outside influence by strong barriers or support.

    Grammar: Often used figuratively about people, groups, or systems.

    Patterns

    • be well insulated from something
    • well insulated against criticism

    The committee seemed well insulated from public anger.

    Their wealth kept them well insulated against the effects of the recession.

Common combinations

well insulated walls
Well insulated walls keep the room warm in winter.
well insulated home
A well insulated home uses less energy.
well insulated against noise
The windows are well insulated against noise.
poorly insulated
The old cottage is poorly insulated and feels damp.

Synonyms and how they differ

lagged
British and technical; used mainly for pipes and tanks wrapped in material.
protected
Wider and more general; it does not specifically mean protected from heat or sound.

Opposites

poorly insulated

Word family

insulate verb
To cover or surround something to stop heat, sound, or electricity passing.
insulation noun
Material or the act of stopping heat, sound, or electricity from passing.
insulator noun
A material or object that does not let heat or electricity pass easily.

Commonly confused: well insulated or well isolated?

well insulated vs well isolated

Well isolated means kept apart from other people or things, not protected from heat or sound.

Practice

The loft is ______, so the upstairs rooms stay cool in summer.

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