Definitions by ArgumentWinner13

Stupidity 

Thinking you've made a good decision and then blaming other people when it fails

"Wow I can't believe she didn't get the delivery she didn't know was coming?!?"

When your brother orders you a surprise but doesn't realise you can't hear the delivery drivers outside your door, he has an abundance of stupidity
When you blame your sister for your own failure to plan

Stupidity by ArgumentWinner13 December 2, 2021