insulator
1 antonym for insulator — opposites grouped by meaning.
Noun — A material or device that stops heat, sound or electricity from passing through it.
Antonyms
How to use insulator
The word patterns that sound natural to a native speaker.
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 →