stick at

stick at idiom
Scruple or hesitate, as in She sticks at nothing to gain her ends. This idiom, nearly always used in a negative context, was first recorded in 1525. Also see stop at nothing.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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