survivalismPronunciation: /səˈvʌɪv(ə)lɪz(ə)m/Definition of survivalism noun [mass noun] 1the practising of outdoor survival skills as a sport or hobby. 2the policy of trying to ensure one’s own survival or that of one’s social or national group. Derivatives survivalist noun & adjective survivalism in other Oxford dictionaries Definition of survivalism in the US English dictionary