stick at something phrasal verb British English (see also stick)

1. to continue doing something in a determined way in order to achieve something:
Revising with your friends may help you stick at it.

2. stick at nothing informal to be willing to do anything, even if it is illegal, in order to achieve something
stick at nothing to do something
He will stick at nothing to make money.

[TahlilGaran] Dictionary of Contemporary English ▲