Home » Quote: Definition of stupid: Knowing the truth, seeingQuote: Definition of stupid: Knowing the truth, seeingTruthShare this post: Share on Twitter Share on Facebook Share on Pinterest Share on LinkedIn Share on Email Share on WhatsAppDefinition of stupid: Knowing the truth, seeing evidence of the truth, but still believing the lie. Related Tags:Truth previousQuote: Choices made in anger cannot be undone.nextQuote: I PLANNED MY SUCCESS. I KNEW IT WAS GOING TO HAPPEN.