at all costs
if something must be done or avoided at all costs, it must be done or avoided whatever happens

[TahlilGaran] Dictionary of Contemporary English ▲

at all costs
if something must be done or avoided at all costs, it must be done or avoided whatever happens.
The only other option is working on Saturdays which is something I want to avoid at all costs.

He appears to have decided that he must stay in power at all costs.

[TahlilGaran] English Idioms Dictionary ▲

at all costs
at any expense of time/effort/money; no matter what, regardless of the cost or difficulty
We plan to send our child to a good school at all costs.

The company decided to protect their market share at all costs.

[TahlilGaran] English Idioms Dictionary ▲

at all costs
adv. phr. At any expense of time, effort, or money. Regardless of the results.
Mr. Jackson intended to save his son's eyesight at all costs.
Carl is determined to succeed in his new job at all costs.

[TahlilGaran] English Idioms Dictionary ▲