effusive

adjective

ef·​fu·​sive i-ˈfyü-siv How to pronounce effusive (audio)
e-
-ziv
Synonyms of effusivenext
1
: marked by the expression of great or excessive emotion or enthusiasm
effusive praise
2
archaic : pouring freely
3
: characterized or formed by a nonexplosive outpouring of lava
effusive rocks
effusively adverb
effusiveness noun

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Effusive History Is Overflowing

English speakers have used effusive to describe excessive outpourings since the 17th century. Its oldest and still most common sense relates to the expression of abundant emotion or enthusiasm, but in the 1800s, geologists adopted a specific sense characterizing flowing lava, or hardened rock formed from flowing lava. Effusive can be traced, via the Medieval Latin adjective effūsīvus ("generating profusely, lavish"), to the Latin verb effundere ("to pour out"), which itself comes from fundere ("to pour") plus a modification of the prefix ex- ("out"). Our verb effuse has the same Latin ancestors. A person effuses when speaking effusively. Liquids can effuse as well, as in "water effusing from a pipe."

Examples of effusive in a Sentence

They offered effusive thanks for our help. often effusive no matter what the occasion, they are even more so at weddings and funerals
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.
Ronaldo, the former Brazil striker, was similarly effusive. Jack Lang, New York Times, 14 Dec. 2025 Yankees general manager Brian Cashman has been effusive in his praise of Bellinger this offseason, but the two-time All-Star remains available for the taking. Patrick McAvoy, MSNBC Newsweek, 10 Dec. 2025 In conversations around governors meetings in Phoenix, Arizona over the last few days, Democrats were at times effusive in sharing their belief that the party's presidential standard bearer in 2028 will be someone who has served like them. Hunter Woodall, CBS News, 8 Dec. 2025 But most of the more recent reviews were effusive. Eric Adler, Kansas City Star, 5 Dec. 2025 See All Example Sentences for effusive

Word History

Etymology

borrowed from Medieval Latin effūsīvus "generating profusely, lavish," from Latin effūsus (past participle of effundere "to pour out, discharge, expend") + -īvus -ive — more at effuse entry 1

First Known Use

circa 1687, in the meaning defined at sense 1

Time Traveler
The first known use of effusive was circa 1687

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Cite this Entry

“Effusive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/effusive. Accessed 20 Dec. 2025.

Kids Definition

effusive

adjective
ef·​fu·​sive i-ˈfyü-siv How to pronounce effusive (audio)
e-
-ziv
: expressing or showing much emotion
effusive thanks for their anniversary present
effusively adverb
effusiveness noun

More from Merriam-Webster on effusive

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