1
as in interim
intended to last, continue, or serve for a limited time
will serve as the ad interim CEO until the merger of the two corporations is complete
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2
as in acting
serving in a position for the time being
an ad interim government until the new constitution goes into effect
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Recent Examples of ad interim
Lorenzo de Zavala helped draft the constitution of the Republic of Texas, and his fellow delegates elected him ad interim vice president of the new country.
—
USA Today, 28 Sep. 2021
Other members of the U.S. delegation, according to the White House, include Raymond Greene, the Chargé d’Affaires ad interim at the U.S. Embassy in Tokyo, and Marcia Bernicat, senior official for economic growth, energy as well as the environment.
—Melissa Locker, Time, 4 Aug. 2021
The US Embassy in Seoul also lowered flags to honor the shooting victims, Chargé d'Affaires ad interim Rob Rapson said on Twitter.
—Madeline Holcombe, CNN, 19 Mar. 2021
Shawn Morgan will replace him on an ad interim basis for North America.
—Phoebe Wall Howard, Detroit Free Press, 11 June 2020
USA Today, 28 Sep. 2021
Other members of the U.S. delegation, according to the White House, include Raymond Greene, the Chargé d’Affaires ad interim at the U.S. Embassy in Tokyo, and Marcia Bernicat, senior official for economic growth, energy as well as the environment.
—Melissa Locker, Time, 4 Aug. 2021
The US Embassy in Seoul also lowered flags to honor the shooting victims, Chargé d'Affaires ad interim Rob Rapson said on Twitter.
—Madeline Holcombe, CNN, 19 Mar. 2021
Shawn Morgan will replace him on an ad interim basis for North America.
—Phoebe Wall Howard, Detroit Free Press, 11 June 2020
Recent Examples of Synonyms for ad interim
Adjective
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Marco Donadel notched his first victory as Montreal's head coach after taking over on an interim basis last season when the club finished 13th and missed the playoffs.—
CBS News,
CBS News,
9 Mar. 2026
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Meanwhile at Standard Life, the insurer’s capital markets head Nuwan Goonetilleke will become its interim CIO as the company searches for a permanent successor to Eakins.—
Leonard Kehnscherper,
Bloomberg,
8 Mar. 2026
Adjective
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There was also the sound of a generator, which would require a permit, a check-in table, a metal detector and a temporary wall with branding, Sterling said.—
Hannah Fry,
Los Angeles Times,
6 Mar. 2026
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The deposition also delved into Zuckerberg’s decision to lift a temporary Instagram ban on the use of cosmetic filters that changed people’s appearance in a way that seemed to promote plastic surgery.—
Morgan Lee,
Fortune,
6 Mar. 2026
Cite this Entry
“Ad interim.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ad%20interim. Accessed 10 Mar. 2026.
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