flame-retardant
adjective
flame-re·tar·dant ˈflām-ri-ˌtär-dᵊnt 
: made or treated so as to resist burning
Word History
First Known Use
1947, in the meaning defined above
- counterrer
- counterresponse
- counterresponses
- counterrest
- counterretaliation
- counterretaliations
- counterrevolution
- counterrevolutionaries
- counterrevolutionary
- counterrevolutionist
- counterrevolutionists
- counterrevolutions
- counterriposte
- counterrotating propeller
- counterrotation
- counters
- countersalient
- countersank
- counterscarp
- counterscarps
- countersea
- counterseal
- countersecure
- counterselection
- countersense