Vagary
[/ˈvāɡərē/]
Part of speech: noun
1.
An unpredictable aspect of something
2.
A strange idea or occurrence that seems to arise suddenly and without reason
Examples of Vagary in a sentence
"Anyone who can figure out the vagaries of the stock market stands to make a lot of money."
"Don't spend too much time trying to understand the weather's vagaries."
About Vagary
Though not based on the word vague, vagary's current usage has more in common with it than its actual root word, the Latin vagari, which means to "wander." Weather, the economy, and other difficult-to-pin-down concepts are all full of vagaries.
Did you Know?
If you're still a bit confused by the definition of vagary after rereading it, that's oddly appropriate. The word refers to actions, ideas, occurrences, and concepts that are difficult (if not impossible) to predict and, even in hindsight, far from easy to totally understand.