as in undersides
the side or part facing downward from something
the bird's underparts were white
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Recent Examples of Synonyms for underparts
undersides
Noun
-
To achieve their audacious goals, the fish use hook-like growths on the undersides of both their pectoral and pelvic fins to push themselves upward.—
Andrew Paul,
Popular Science,
2 Apr. 2026 -
Even plants with dark red or purple undersides — indoor plants such as Calatheas and Marantas come to mind — thrive in environments with limited light.—
Joshua Siskin,
Oc Register,
28 Mar. 2026
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“Underparts.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underparts. Accessed 9 Apr. 2026.
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