as in underside
the side or part facing downward from something
the bird's underparts were white
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Recent Examples of underpart
Calliope hummers have glossy green on the back and crown with white underparts.
—
Joan Morris, The Mercury News, 26 July 2019
The adult brown pelican has gray underparts with brown hues, black-brown belly, yellow head and dark brown neck, silver-gray back and wings, with black feathers at the tips.
—Ernie Cowan, San Diego Union-Tribune, 13 June 2019
Joan Morris, The Mercury News, 26 July 2019
The adult brown pelican has gray underparts with brown hues, black-brown belly, yellow head and dark brown neck, silver-gray back and wings, with black feathers at the tips.
—Ernie Cowan, San Diego Union-Tribune, 13 June 2019
Recent Examples of Synonyms for underpart
Noun
-
Check the undersides of leaves for insects.—
Kim Toscano,
Southern Living,
29 May 2026
-
Patrick Dorgu earns a special commendation for his thunderbolt of a half-volley that rattled in off the underside of the crossbar.—
Carl Anka,
New York Times,
26 May 2026
Noun
-
The Rockies cut it to 6-1 on back-to-back doubles by Hunter Goodman and Troy Johnston in the fourth, but the Angels countered with Grissom’s two-run homer in the bottom of the inning for an 8-1 lead.—
Los Angeles Times,
Los Angeles Times,
4 June 2026
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In the photos, Jenner accessorizes the pink bikini with a matching pink skirt with ruffles on the bottom.—
Lori A Bashian,
FOXNews.com,
3 June 2026
Cite this Entry
“Underpart.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underpart. Accessed 4 Jun. 2026.
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