1. Discover, invent, originate suggest bringing to light something previously unknown. To discover may be to find something that had previously existed but had hitherto been unknown: to discover a new electricity; it may also refer to devising a new use for something already known: to discover how to make synthetic rubber. To invent is to make or create something new, especially something ingeniously devised to perform mechanical operations: to invent a device for detecting radioactivity. To originate is to begin something new, especially new ideas, methods, etc.: to originate a political movement, the use of assembly-line techniques.

Did you mean indiscoverable?