Word
insulated
Phoneticsin·su·lat·ed, stress on the first syllable
US/ˈɪnsəˌɫeɪtəd/
UK/ˈɪnsjʊlˌeɪtɪd/
Definitions
01protected from heat/cold/noise
B2 · Upper Intermediate
adj. protected by a special material so that heat, cold, or sound cannot get in or out.
adj. protected from the transmission of heat, cold, or sound by being surrounded with non-conducting material.
“The new house is well insulated, so it stays warm even in winter.”
“The contractor recommended using high-density foam to ensure the attic was properly insulated against the extreme temperatures of the high desert.”
Antonyms
02electrical protection
B2 · Upper Intermediate Science Technical
adj. covered with a material that does not let electricity pass through.
adj. separated from other conducting materials or sources of electricity by a non-conductor to prevent the transfer of current.
“Always check that the copper wires are fully insulated with plastic before you use them.”
“For safety reasons, all tools used by the electricians were heavily insulated to prevent accidental grounding during the high-voltage installation.”
Synonyms
Antonyms
03astronomical distance
C2 · Proficiency Astronomy Archaic · Technical
adj. describes stars that are so far apart that they do not pull on each other with gravity.
adj. situated at such a great distance as to be beyond the detectable effect of mutual gravitational attraction.
“The old book described the stars as insulated bodies in the vastness of space.”
“Early astronomers theorized that certain stars were effectively insulated, existing beyond the reach of the gravitational influence of neighboring systems.”
Usage
Often follows a linking verb like 'be', 'stay', or 'remain'; frequently takes the preposition 'from' in its figurative sense.
Pitfall
the house is insulate
the house is insulated
Learners often use the base verb 'insulate' when they need the participial adjective 'insulated' to describe a state.
Real-World Examples
“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.” “It’s versatile: you can brew a single cup of coffee directly into a cup, or fill the metal insulated jug with up to 1.5 litres of coffee.” Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Frequent
- Level
- B2 · Upper Intermediate
- Updated
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