thornier; thorniest
1
: full of thorns
2
: full of difficulties or controversial points : ticklish
a thorny problem
thorniness noun

Examples of thorny in a Sentence

stay out of the thorny brambles unless you want a ton of scratches
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.
The fate of TikTok became increasingly wrapped up in sweeping trade talks between Washington and Beijing that include strategically thorny topics like tariffs, microchips, rare earth minerals and China's export of chemicals used to make the synthetic opioid fentanyl. John Ruwitch, NPR, 19 Sep. 2025 The crypto market has added new dynamics to those thorny issues in the decades that followed. Chris Groshong, Forbes.com, 17 Sep. 2025 But that would create a thorny conflict of interest for Denholm and her fellow directors, with Musk seeking — not for the first time — to use Tesla to subsidize one of his less-profitable ventures. Liz Hoffman, semafor.com, 16 Sep. 2025 Redford’s rise to the top was all the more remarkable given his penchant for characters who were aloof, sardonic, even thorny. Steve Chagollan, Variety, 16 Sep. 2025 See All Example Sentences for thorny

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of thorny was before the 12th century

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Cite this Entry

“Thorny.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thorny. Accessed 22 Sep. 2025.

Kids Definition

thorny

adjective
thornier; thorniest
1
: full of or covered with thorns
thorny rose bushes
2
: full of difficulties
a thorny problem
thorniness noun

More from Merriam-Webster on thorny

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