1. Difficult to burn
   - fire-retardant, fire-resistant, fire-resisting

See also: incombustible, noncombustible

• waveringly
• waviness
• waving
• wavy
• wavy-grained
• wavy-leaved aster
• waw
• wawl
• wax
• wax bean
• wax begonia
• wax crayon
• wax figure
• wax insect
• wax light
• wax moth
• wax myrtle
• wax palm
• wax paper
• wax plant
• wax-chandler
• wax-myrtle family
• waxberry
• waxbill
• waxed