spinier; spiniest
1
: abounding with difficulties, obstacles, or annoyances : thorny
spiny problems
2
: covered or armed with spines
broadly : bearing spines, prickles, or thorns
3
: slender and pointed like a spine
spininess noun

Examples of spiny in a Sentence

this promises to be a spiny problem to negotiate
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This medium-sized toad, found in the Khumbu region, is distinguished by its large, flat head and spiny skin. Real-Time News Team, Miami Herald, 16 May 2025 Medium spiny neurons play an important role in habit formation, the process by which a behavior becomes automatic and habitual – think compulsions. Carol Mathews, The Conversation, 13 May 2025 From tree stumps and rocks, the spiny reptiles basked and watched as wooden fences subdivided the landscape. Sean Greene, Los Angeles Times, 25 Apr. 2025 Every late November and early December, the Anegada Lobster Festival takes the island's year-round lobster love and turns it into an obsession, with local restaurants featuring special dishes and plenty of events making the spiny Anegada lobster the star of the show. Carley Rojas Avila, Travel + Leisure, 20 Apr. 2025 See All Example Sentences for spiny

Word History

First Known Use

1586, in the meaning defined at sense 1

Time Traveler
The first known use of spiny was in 1586

Browse Nearby Words

Cite this Entry

“Spiny.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spiny. Accessed 20 May. 2025.

Kids Definition

spiny

adjective
spinier; spiniest
1
: full of difficulties, obstacles, or problems : thorny
2
: having or covered with spines, thorns, or prickles
spininess noun

More from Merriam-Webster on spiny

Last Updated: - Updated example sentences
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