Synonyms of undergird

undergird

verb

ˌən-dər-ˈgərd 

as in to sustain

to hold up or serve as a foundation for

the theory of evolution undergirds virtually all of modern biology

Synonyms & Similar Words

• sustain
• support
• carry
• bolster
• uphold
• stay
• underpin
• buttress
• underlie
• brace
• bear
• shore (up)
• prop (up)
• steady
• truss

Example Sentences

Recent Examples of undergird

Chaudhry emphasized that the Pentagon’s budget proposal also requests significant funding to integrate AI into the software systems that undergird the military’s nuclear command and control structure. — Jared Perlo, NBC news, 19 Sep. 2026

The financial manipulations that undergirded their fortunes get scrutinized as theft from the public purse, praise for their courage and perspicacity yields to condemnation for their conduct. — Business Columnist, Los Angeles Times, 7 Sep. 2026

Less apparent, though, is the dramatic shift in domestic security doctrine that undergirds these efforts. — Andrei Soldatov, Foreign Affairs, 31 Aug. 2026

This week, Ars hosted a live discussion with Ross Scott about the Stop Killing Games movement and its ongoing efforts to ensure that games remain playable even after the original publisher shuts down the online servers undergirding them. — Kyle Orland, ArsTechnica, 14 Aug. 2026

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