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

See also: incombustible, noncombustible

• detoxicate
• detoxification
• detoxify
• detract
• detraction
• detractive
• detractor
• detrain
• detransitivise
• detransitivize
• detribalisation
• detribalise
• detribalization
• detribalize
• detriment
• detrimental
• detrimentally
• detrital
• detrition
• detritus
• Detroit
• Detroit River
• detumescence
• detusk
• deuce