Added 9 October 2026 self-sustaining adjective Categories: Describing WordsObscure Words adjective ! Definition from Wiktionary (CC BY-SA). More about self-sustaining at Wordnik → Where our words come from → Able to provide for one's own needs without help from others; self-sufficient. Able to sustain itself without the need for additional fuel. Able to sustain itself without the need for additional fuel. Opposing or rejecting exterior influence; independent. Related Words: self-sufficientindependentself-sufficingself-relianceself-sufficiencyself-reliantself-supportingself-supportself-directedself-helpindependencestand-alone Back to today's word