Discovering or happening upon something by chance can be described using a variety of synonyms for "stumble into." For example, you might "find" something unexpectedly, "encounter" it accidentally, or even "stumble upon" it. Other possibilities include "come across," "unearth," "chance upon," or "happen upon." Each of these phrases conveys the idea of stumbling into something, whether it's a chance meeting with someone, an unexpected discovery, or a serendipitous encounter with a new idea or opportunity. Whether you prefer one of these synonyms or another phrase entirely, the notion of stumbling into something unexpected and exciting captures a sense of wonder and possibility that can be exhilarating.