Other forms: disbelieves
Disbelief is the refusal or the inability to believe something. You heard it and your mind will not accept it.
It takes at or in, and the standard phrases are staring in disbelief and shaking his head in disbelief. The word describes a reaction rather than an opinion, which is why it belongs to moments rather than to arguments. Theatre and fiction rely on the willing suspension of disbelief, meaning the audience's agreement to accept the impossible for a couple of hours, which is one of the most useful phrases in criticism.
1noundisbeliefInability or refusal to accept that something is true.
“He stared at the screen in disbelief.”
Middle English
bileve
English
belief
English, today
disbelief
From dis- + belief. belief comes from Middle English bileve. From Middle English bileve, from Old English lēafa, from Proto-West Germanic laubu from Proto-Germanic laubō. Compare German Glaube (“faith, belief”). The replacement of final with is due to the analogy of noun-verb pairs with in the noun but in the verb, creating a pair belief: believe on the model of e.g. grief: grieve or proof: prove.
Etymology from Wiktionary, CC BY-SA