Definition
A 'doubting Thomas' refers to a skeptic who refuses to believe something without direct, personal evidence. The term comes from the biblical story of the Apostle Thomas, who doubted Jesus's resurrection until he saw and touched his wounds. Think of someone who needs to see it to believe it; someone who requires proof before accepting anything. This term implies a healthy dose of skepticism but can also suggest stubbornness or a lack of faith. It highlights the tension between belief and empirical evidence. It's a common idiom used to describe someone who is hard to convince.