If you look at the password in the Wireless – Security Profiles menu in RouterOS, then it is hidden behind the symbols and can only be changed, so I will show an example of how you can see it.
We open Terminal, in new versions the button is located on the right in the upper corner, on the old ones it used to be on the left in the menu at the very bottom. In the terminal that opens, we will type a command that will show the entire configuration of the device:
Usually, at the beginning of the configuration, you can see a command that just stores the WiFi password in clear text, for example:
set [ find default=yes ] authentication-types=wpa2-psk mode=dynamic-keys supplicant-identity=MikroTik wpa2-pre-shared-key=ixnfo.com
Where in wpa2-pre-shared-key and the password will be specified.