FISSILE Antonyms1 antonym for fissile. (opposite meanings)Definition of FISSILE Best Opposite Words For FISSILETop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb WordSaveSyns..UsageTypenonfissileadverb, adjectiveadv, adjadjective • not fissile Alternatives for NONFISSILE Words (5)inertnoncombustiblestableunreactiveunburnableOpposite words for nonfissile
