factsious
Factsious is like being a fact superhero. You have facts on your side and you use them to beat up lies.
I was factsious in the debate club and I won because I had 10 facts and my opponent had 2.
My friend said I was factsious because I knew the exact number of jellybeans in the jar.
I told my dad I was factsious and he said I was just being annoying, but I knew he was wrong.