: very noisy and active in a lively way
A large and boisterous crowd attended the concert.
a boisterous drinking party
He had a big, boisterous [=hearty] laugh.
Cite this Entry
“Boisterous.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/boisterous. Accessed 22 Jun. 2026.
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