falter in

falter in (something)

To waver or fail in regard to something. Hey, I was always faithful to Ron—I never faltered in my wedding vows!
See also: falter
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

falter in something

to fail in doing something; to exhibit a lack of something, such as faith, loyalty, perseverance, etc. He did not falter in his effort to see the project through to the end. I promised not to falter in my loyalty.
See also: falter
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Housing markets may falter in areas that experience increased successive hurricanes over a short period of time, according to the October 2001 issue of The Appraisal Journal, the professional journal of the appraisal industry.
That's why I think it's unacceptable to create a precedent whereby the Chief Inspector, who lays down demanding standards for others, should falter in meeting her own targets.