Antonyms of noun conductor

1 of 4 senses of conductor

Sense 2
conductor -- (a substance that readily conducts e.g. electricity and heat)
       Antonym of insulator (Sense 1)
      => insulator, dielectric, nonconductor -- (a material such as glass or porcelain with negligible electrical or thermal conductivity)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun conductor

4 senses of conductor

Sense 1
conductor, music director, director -- (the person who leads a musical group)
       => musician -- (artist who composes or conducts music as a profession)

Sense 2
conductor -- (a substance that readily conducts e.g. electricity and heat)
       => material, stuff -- (the tangible substance that goes into the makeup of a physical object; "coal is a hard black material"; "wheat is the stuff they use to make bread")

Sense 3
conductor -- (the person who collects fares on a public conveyance)
       => collector, gatherer, accumulator -- (a person who is employed to collect payments (as for rent or taxes))

Sense 4
conductor -- (a device designed to transmit electricity, heat, etc.)
       => device -- (an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water")