uncertain

Meanings

1. 1
   adj

   Not sure or confident about something.

   She was uncertain about which job to take.

2. 2
   adj

   Not known for sure; not yet decided.

   Tomorrow's weather is uncertain.

3. 3
   adj

   Likely to change; not steady or reliable.

   He took a few uncertain steps in the dark.

From Middle English uncerteyn. By surface analysis, un- + certain.

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