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

See also: incombustible, noncombustible

• scale value
• scale wax
• scaled
• scaleless
• scalelike
• scalene
• scalene muscle
• scalene triangle
• scalenus
• scalenus syndrome
• scaler
• scaley
• scalic
• scaliness
• scaling
• scaling ladder
• scallion
• scallop
• scallop shell
• scalloped
• scallopine
• scallopini
• scallywag
• scalp
• scalp lock