1. A state of being unknown or inconspicuous; an unimportant person or thing: Marilyn was quickly moved from obscurity to star in a Hollywood musical.

Monroe has been living in relative obscurity in a small village near the forest.

Anyone who wins a million-dollar lottery is suddenly yanked by chance from obscurity to short-lived fame.

2. Lacking clarity or having difficulty in being understood: The economic report by the government agency is full of obscurities which makes it very hard to know what it means.
3. Being in a state of darkness, dimness, and indistinctness: The winter clouds have produced obscurities of the sun to such a degree that it is almost dark even though it is still the middle of the day.