Unbelieving/ˌʌnbɪˈliːvɪŋ/ Definition 1 of 1Pro Tip 1/3Religious Context Used for expressing doubt or denial about religious beliefs specifically. The priest addressed the unbelieving members of the congregation. Pro Tip 2/3Not Always Negative 'Unbelieving' can be neutral, not just negative; it depends on context. The once unbelieving scientist found the spiritual discussion intriguing. Pro Tip 3/3Surprised Doubt Sometimes indicates surprise or shock, making someone temporarily doubting. She gave him an unbelieving stare when he revealed the secret.