Abiotic refers to the lack of living components or biological processes. Therefore, antonyms for abiotic should describe words that involve life, living beings or living processes. Here are some of the antonyms that come to mind: living, biotic, organic, animate, alive, living, and vital. These words are used to describe elements that are found in nature, which are typically composed of living components. For instance, an ecosystem is biotic because it's made up of living organisms. Unlike abiotic, biotic systems can sustain themselves without outside intervention. Organic, on the other hand, pertains specifically to living matter, whereas alive and living describe entities with life. Vital refers to the essential nature of living beings.