1. (noun) doubt about the truth of something

• incredulity
• mental rejection
• skepticism

2. (noun) a rejection of belief

• unbelief

1. (noun) a rejection of belief

• agnosticism
• scepticism
• skepticism
• atheism

1. (noun) doubt about the truth of something

• doubt
• doubtfulness
• dubiety
• dubiousness
• incertitude
• uncertainty

2. (noun) a rejection of belief

• cognitive content
• content
• mental object

1. (noun) a rejection of belief

• belief

1. (noun) doubt about the truth of something

• disbelieving
• sceptical
• skeptical
• unbelieving
• doubting
• questioning
• sceptical
• skeptical
• incredulous