Other forms: reconfirmed; reconfirming; reconfirms
If you certify that something is correct again, you reconfirm it. Watching your favorite movie for the seventh or eighth time will either reconfirm your admiration for it or start to bore you a little.
When an experience reconfirms an idea you've already held for a while, it provides extra evidence and support for that view. For example, your grandfather might say, "I was already convinced that kids today are much more rude than they used to be, but watching that boy text at the dinner table just reconfirms it." Reconfirm adds the "again" prefix re- to confirm, from the Latin confirmare, "make firm" or "strengthen."