olemus
(1) organisatsiooni või sündmuse kontekstis
ISO 20121:
jätkusuutliku arengu aste
= degree of sustainable development in the context of the organization or event

Wiktionary:
1.2 (business) the ability to sustain a business in the long term, which is a state that is partly dependent on, but broader than, profitability today or in the short term; it involves aspects of a plausible path toward eventual profitability (as applies to a startup) and ecologic sustainability (for example, the long-term dependence of the timber/lumber industry on forest preservation and renewal, or of fisheries on viable fish stocks).

(2) ökoloogias:
omadus vältida keskkonna kahjustamist ja loodusressursside raiskamist ning toetada seeläbi pikaajalist ökoloogilist tasakaalu

Wiktionary:
1.1 (ecology) a means of configuring civilization and human activity so that society, its members and its economies are able to meet their needs and express their greatest potential in the present, while preserving biodiversity and natural ecosystems, planning and acting for the ability to maintain these necessary resources for future generations

ISO Guide 82:
globaalsüsteemi ning ta keskkonna-, sotsiaal- ja majandusaspektide olek, milles rahuldatakse praegused vajadused ohustamata tulevaste põlvede võimalust rahuldada oma vajadusi
= state of the global system, including environmental, social and economic aspects, in which the needs of the present are met without compromising the ability of future generations to meet their own needs

https://en.wikipedia.org/wiki/Sustainability

vt ka
- andmekestlikkus
- kestlikkus (2)
- tegevuskestlikkus