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Life-sustaining has 2 synonyms. The top synonyms for life-sustaining are vital, essential. Another word for life-sustaining is vital. Browse the full list below.
| Length
| Random | DefinitionA common synonym for life-sustaining is vital. Other synonyms include essential.
Life-sustaining has 2 synonyms listed on Thesaurasize.
(adj): performing an essential function in the living body
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