Why “dubiety” is a great word
A state or quality of being doubtful, or a particular instance of vacillating uncertainty. From Late Latin *dubietās* ('doubt, uncertainty'), from Latin *dubius* ('wavering, doubtful'), from *duo* ('two'); first attested in English in the 1650s. Unlike 'skepticism,' which implies a principled stance of systematic disbelief, or the broad, neutral field of 'uncertainty,' dubiety is the specific, active tremor of hesitation. It is the cold pause before signing a document, the foot hovering above the first step of a dark staircase, the suspended breath between a question and an answer no longer trusted—a quiet friction of the mind held in the balance of two equally plausible truths.
Definitions & examples from Wiktionary (CC BY-SA 3.0).