by chance

US /baɪ tʃæns/

UK /baɪ tʃæns/

1.

without planning or intention; accidentally

:

•

I met my old friend by chance at the airport.

•

Did you find that book by chance or were you looking for it?

:

accidentally fortuitously unintentionally unwittingly inadvertently

:

chance take a chance stand a chance on the off chance fat chance give someone a chance chance your arm