Dissonance means a lack of harmony or agreement between things. It is when there is a conflict or inconsistency between ideas, beliefs, or actions. Full definition
There's a little bit of cognitive dissonance between the view out the front and my eyes adjusting to that video display. (cnet.com)
We want to reduce the cognitive dissonance of not knowing by filling the gaps with answers. (scientificamerican.com)
«I played Donkey Kong Country and marveled at the cognitive dissonance between what I remember (incredible graphics) and what I was looking at today (not incredible graphics).» (tomsguide.com)