uncertainty or lack of certainty

अनिश्चितता

English Usage: His incertain future worried him.

Hindi Usage: उसकी अनिश्चितता भविष्य उसे परेशान करती थी।

not firmly established or recognized

स्पष्ट नहीं

English Usage: The results of the experiment were incertain.

Hindi Usage: परिक्षण के परिणाम स्पष्ट नहीं थे।