People who lack confidence in something or someone; people who question or disbelieve something.
From 'doubt,' which comes from Latin 'dubitare' meaning to waver or hesitate, originally implying a state of uncertainty about two possibilities.
Thomas the Apostle is forever called 'Doubting Thomas' because he questioned Jesus's resurrection, but neuroscience shows doubt is actually a sign of healthy critical thinking—our brains are skeptical by design to protect us from false beliefs.
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