insulator
3 synonyms and 1 antonym for insulator, grouped by meaning and by how common each one is.
Noun — A material or device that stops heat, sound or electricity from passing through it.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
insulant
dielectric
nonconductor
Antonyms
How to use insulator
The word patterns that sound natural to a native speaker.
electrical insulator
thermal insulator
acoustic insulator
good insulator
Insulator is used in everyday contexts as well as in technical writing about electricity and building materials.
Etymology
Insulator is built from the verb insulate with the ending -or, which turns a verb into a word for the person or thing that does the action.
Full origin of insulator →Frequently asked questions
What is an insulator?
An insulator is a material or device that prevents heat, sound or electricity from passing through it.
What are common examples of insulators?
Rubber, glass and foam are commonly used as insulators, for example in wiring, power lines and loft insulation.
What is the opposite of an insulator?
A conductor is the opposite, since it allows heat or electricity to pass through easily.
