Word.ws English Dictionary

flame-retardant

flame-retardant adjective: hard to ignite; not supporting or conveying flame; tending to curtail flames' spread.

Adjective

flame-retardant (comparative more flame-retardant, superlative most flame-retardant)

  1. Hard to ignite; not supporting or conveying flame; tending to curtail flames' spread.
    Antonyms:
    flammable

Noun

flame-retardant (plural flame-retardants)

  1. A substance used to make an object flameproof.
    • The flame-retardant used on the child's pajamas would keep them from bursting into flame, but it caused a rash.

Synonyms of flame-retardant

Antonyms

Forms of flame-retardant

Adjective
comparativemore flame-retardant
superlativemost flame-retardant
alternative formflame retardant
Noun
pluralflame-retardants

Questions about flame-retardant

What does flame-retardant mean?
Flame-retardant means hard to ignite; not supporting or conveying flame; tending to curtail flames' spread.
What part of speech is flame-retardant?
Flame-retardant can be an adjective or a noun.

Words near flame-retardant in the dictionary

  1. flame-outs
  2. flame-proof
  3. flame-proofed
  4. flame-proofing
  5. flame-proofs
  6. flame-retardant
  7. flame-retardants
  8. flame-thrower
  9. flameable
  10. flameage
  11. flameback

Source and license

Adapted from Wiktionary: flame-retardant (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “flame-retardant.” Word.ws, https://word.ws/flame-retardant. Based on Wiktionary, CC BY-SA 4.0.