Word.ws English Dictionary

Past tense of insulate

regular verb

The past tense of insulate is insulated. The past participle is also insulated.

Forms of insulate

Base form (V1)insulate /ˈɪnsjʊleɪt/
Past tense (V2)insulated
Past participle (V3)insulated
Present participleinsulating
Third person singularinsulates

Insulated in a sentence

  • A simple transformer can be made by coiling two pieces of insulated copper wire around an iron heart.From the entry coil
  • Early insulated wires were covered in silk rather than plastic.From the entry insulated
  • The rich are often so insulated from reality that they think the poor have extra money they could save for more than a short time.From the entry poor
  • This system has an insulated 5-gallon electric hot water heater directly under the sink.2003, Blair Allen, Julie Jones Lloyd Kahn, Septic System Owner's Manual. From the entry hot water heater
  • Private ‘audiations’ are systematically insulated from the ambient environment critique performance lives in.1992, Stan Godlovitch, The Journal of Aesthetic Education, Urbana, Ill.: University of Illinois Press, →OCLC, page 7; republished as…. From the entry audiation

Meaning of insulate

  1. verb To separate, detach, or isolate.
  2. verb To separate a body or material from others, e.g. by non-conductors to prevent the transfer of electricity, heat, etc.
  3. adjective Of pollen or spores, with superficial ornamentation grouped in circular or polygonal areas separated by grooves.

Full definition of insulate

Questions about the past tense of insulate

What is the past tense of insulate?
The past tense of insulate is insulated.
What is the past participle of insulate?
The past participle of insulate is insulated.
Is insulate a regular or irregular verb?
Insulate is a regular verb: its past tense adds -d.

Source and license

Adapted from Wiktionary: insulate (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Past tense of insulate.” Word.ws, https://word.ws/past-tense/insulate. Based on Wiktionary, CC BY-SA 4.0.