There are many different synonyms for the phrase "natural outcomes," depending on what specifically you're trying to convey. Some similar phrases that might fit your needs include "inevitable consequences," "logical conclusions," "expected results," and "foreseeable outcomes." Another option could be "organic outcomes," which might be particularly appropriate if you're discussing natural processes or systems. Similarly, you might use "spontaneous outcomes" if you're talking about something that occurs without deliberate planning or intervention. Ultimately, the best synonym for "natural outcomes" will depend on the specific context and meaning that you're trying to convey.