Antonyms of noun belief

1 of 2 senses of belief

Sense 1
belief -- (any cognitive content held as true)
       Antonym of unbelief (Sense 1)
      => unbelief, disbelief -- (a rejection of belief)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun belief

2 senses of belief

Sense 1
belief -- (any cognitive content held as true)
       => content, cognitive content, mental object -- (the sum or range of what has been perceived, discovered, or learned)

Sense 2
impression, feeling, belief, notion, opinion -- (a vague idea in which some confidence is placed; "his impression of her was favorable"; "what are your feelings about the crisis?"; "it strengthened my belief in his sincerity"; "I had a feeling that she was lying")
       => idea, thought -- (the content of cognition; the main thing you are thinking about; "it was not a good idea"; "the thought never entered my mind")