English Reference
adjective

insulated

adj.
US /ˈɪnsəˌɫeɪtəd/ UK /ˈɪnsjʊlˌeɪtɪd/ in·su·lat·ed

  1. 01 B2 Upper Intermediate

    protected by a special material so that heat, cold, or sound cannot get in or out.

    protected from the transmission of heat, cold, or sound by being surrounded with non-conducting material.

    Simple

    The new house is well insulated, so it stays warm even in winter.

    In context

    The contractor recommended using high-density foam to ensure the attic was properly insulated against the extreme temperatures of the high desert.

  2. 02 B2 Upper Intermediate Technical Science

    covered with a material that does not let electricity pass through.

    separated from other conducting materials or sources of electricity by a non-conductor to prevent the transfer of current.

    Simple

    Always check that the copper wires are fully insulated with plastic before you use them.

    In context

    For safety reasons, all tools used by the electricians were heavily insulated to prevent accidental grounding during the high-voltage installation.

    non conducting
  3. 03 C2 Proficiency ArchaicTechnical Astronomy

    describes stars that are so far apart that they do not pull on each other with gravity.

    situated at such a great distance as to be beyond the detectable effect of mutual gravitational attraction.

    Simple

    The old book described the stars as insulated bodies in the vastness of space.

    In context

    Early astronomers theorized that certain stars were effectively insulated, existing beyond the reach of the gravitational influence of neighboring systems.

Sofia hates the idea of taking cash from the kind of arrogant plutocrat who has caused the very problems that he now wants to be insulated from.

The Guardian· 8 Sept 2026
This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated