Definition of sustainable

The word "sustainable" comes from the Latin word "sustinere," meaning "to hold up" or "to support." It first appeared in English in the 15th century, initially referring to the ability of something to be maintained or endured over time. The modern use of "sustainable" in the context of environmentalism and resource management emerged in the late 20th century, reflecting a growing awareness of the need to balance economic development with environmental protection and social equity. This shift in meaning highlights how the word has evolved to encapsulate a broader concept of long-term viability and responsible stewardship.