coarser

American

[kawr-ser, kohr-] / ˈkɔr sər, ˈkoʊr- /

adjective

Mathematics.

of or relating to a topology on a topological space whose open sets are included among the open sets of a second specified topology on the space.

Etymology

Origin of coarser

coarse + -er ⁴

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

coarser

Concentrations of coarser particles, which are also linked to respiratory illness, exceeded Kosovo's daily legal limit on 16 days.

From Barron's ● Aug. 28, 2026

Unlike Maricopa Highway 33, Hudson Ranch Road features coarser asphalt, no guardrails and more passing zones than turnouts.

From Los Angeles Times ● Aug. 13, 2026

The ad itself uses coarser language and has given rise to awkwardness: “That makes the LGBTQ+ community think, ‘Oh, Spencer,’ and Heidi, my wife, is a huge gay icon.”

From The Wall Street Journal ● May 29, 2026

Instead of chasing smoothness, I embraced the coarser texture of cornmeal, letting it resist cohesion.

From Salon ● Apr. 16, 2025

Instead of saying ba-ka-ta-re, a common insult meaning stupid, Terminal Islanders would say ba-ka-ya-ro, a coarser and exclusively masculine use of the word, which implies gross stupidity.

From "Farewell to Manzanar" by Jeanne Houston

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023