Caprice / kə-ˈprēs / noun

Definition: Caprice refers to a sudden, impulsive, and unmotivated act or notion displayed by an individual, animal, or thing. The word is unique in that its origin is both French and Italian. In French, the word caprice refers to “whim,” but it is an interpolation of the Italian word capriccio for “fright” or “sudden start.” Because it denotes a sudden desire, caprice can be either a fun impulsive act or something done on a quick whim, with little to no forethought or preparation.

Etymology: According to most etymologists, the first recorded use of the word caprice occurred somewhere around 1660 to 1670. And it officially became part of the English language in the second half of the 17th century. 

Fun fact: Caprice didn’t become a mainstay in the English vernacular until Chevrolet, part of the General Motors brand, attached the name to one of its full-sized automobiles, which eventually became one of its best-sellers from 1965 to 1996.

In a Sentence

Outlawed and seemingly hated, it appears he relied on the kindness of caprice and generous women for his survival.

Angela choosing to dance naked was a caprice she would have never even considered had she not been drinking.

Synonyms 

Fad, Whim, Vagary

Antonyms 

Constant, Dependable, Steadfast