1. Full of unrestrained enthusiasm or joy: exuberant sports fans; exuberant smiles.
2. Unrestrained or lavish, as in decoration; extravagant: exuberant floral displays.
3. Abundant; plentiful: "Threads of her exuberant hair showed up at the bottom of the sink" (Anne Tyler). See Synonyms at profuse.
[Middle English, overabundant, from Old French, from Latin exūberāns, exūberant-, present participle of exūberāre, to exuberate; see EXUBERATE.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.