s, a, e, f, g, l, n, t, i, u are letters that make 'life-sustaining'
ng, Sus, ain, li, Tai, in, life, stain, staining, AI, ai, US, IN, In, Fe, Li, Ni, Ta, sustain are words within 'life-sustaining'
1 possible definitions for 'life-sustaining'
Under this definition, life-sustaining is an adjective and has the following properties:
vital has the same meaning as life-sustaining
vital force, life force, elan vital, vitalness, indispensability, indispensableness, vitality are derivatives of 'life-sustaining'.
essential is similar to life-sustaining.