/veuh gair"ee, vay"geuh ree/ , n. , pl. vagaries .
1. an unpredictable or erratic action, occurrence, course, or instance: the vagaries of weather; the vagaries of the economic scene.
2. a whimsical, wild, or unusual idea, desire, or action.
[ 1565-75, in sense "wandering journey"; appar. vagari to wander ]
Syn. 2. caprice, whim, quirk, crotchet.