1. Resistant to catching fire
   - flame-retardant

See also: incombustible, noncombustible

• interlayer
• interleaf
• interleave
• interleukin
• interline
• interlineal
• interlinear
• interlineation
• Interlingua
• interlingual rendition
• interlining
• interlink
• interlinking
• interlobular
• interlock
• interlocking
• interlocution
• interlocutor
• interlocutory
• interlocutory injunction
• interlope
• interloper
• interlude
• intermarriage
• intermarry