a mind of its own

A tendency to be unresponsive to human will: The car had a mind of its own and seemed to start only when it felt like it.

Name	Pronounced	Usage
Alexina	al-əg-ZEE-nə	English
Childers	['tʃildəz]
Cletus	KLEE-təs	English
Sutton	['sʌtən]
Boniface	BAWN-ə-fays (English), BAWN-ə-fəs (English)	French, English (Rare)
Oiva	OY-vah	Finnish