unbelief

/ˈʌnbəˌlif/

Other forms: unbeliefs

You can use the noun unbelief to talk about a lack of belief in something, like your unbelief, since childhood, in fairies.

When someone doesn't believe in something, that person has an unbelief. Most often, the term unbelief is used to talk specifically about religion. An atheist is characterized by her unbelief in a god or higher power beyond things that can be scientifically proven. Another word for unbelief is disbelief.

Definitions of unbelief

1. noun

   a rejection of belief
   synonyms: disbelief

   antonyms:

   belief

   any cognitive content held as true

   types:

   agnosticism, scepticism, skepticism

   the disbelief in any claims of ultimate knowledge

   atheism

   a lack of belief in the existence of God or gods

   type of:

   cognitive content, content, mental object

   the sum or range of what has been perceived, discovered, or learned