Is a move mistake, inaccuracy or blunder?

Hi!
How can one check whether the move that was actually not played in the game a mistake or inaccuracy or a blunder since computer analysis shows it for the moves played??
I was looking for a move in one of my games. I want to know if there is any way of checking then please let me know otherwise such a feature would be needed if there is no method. I tried to find computer analysis of the move that I want to analyse after my game is over about how good/bad that move could be!

Thanks in advance

You can enable local Stockfish analysis (using your own computer's CPU) using the button to the top right of the analysis board. Then when you play out moves, it will analyse the position and update the evaluation. Does that help?

@hasc
Thanks sir for your help, but it did not work....
I am also trying something to figure out any other way.....