What does ebullience mean?
Ebullience is the quality of being cheerfully enthusiastic and bursting with energy — a kind of irrepressible high spirits that bubbles over into everything a person does. Someone with ebullience greets life with warmth, vigor, and obvious delight, and their exuberance often proves contagious, lifting the mood of those around them. The word is typically applied to people, especially when describing youthful energy, a lively host, or an unshakably optimistic colleague. It sits at a fairly formal register, appearing more often in written English — reviews, profiles, obituaries — than in casual conversation, yet it remains widely understood. Its connotations are entirely positive: unlike mere hyperactivity or restlessness, ebullience implies genuine good humor and vitality. The word derives from the Latin bullire, 'to boil', so its figurative sense of emotions bubbling over is baked into its very origins. Writers reach for it when 'enthusiasm' feels too plain and they want to convey enthusiasm at full, overflowing boil.
Overflowing enthusiasm, cheerfulness, and exuberant energy.
"His ebullience lit up the entire newsroom."
Usually used with a positive connotation; often modified by adjectives such as 'irrepressible', 'natural', or 'youthful'.
(Rare) The action or state of boiling; bubbling up.
"The textbook described the ebullience of the heated solution."
Largely confined to scientific or technical writing; superseded in everyday use by 'boiling' or 'ebullition'.
Rarely used in the plural, as the quality is normally treated as uncountable; a plural form exists but appears mainly in technical or archaic contexts.
"The report catalogued the various ebulliences observed during the experiment."
Ebullience literally means 'boiling out' — the same Latin root that gives us bouillon, the bubbling soup.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of ebullience
Ebullience comes from the Latin verb bullire, meaning 'to boil', itself formed from bulla, a bubble. It entered English in the mid-18th century via the present participle stem of Latin ebullire, 'to boil over', alongside its older sibling noun ebullition. The literal sense of boiling survives only in technical contexts, while the figurative sense of spirits bubbling over has dominated for centuries. Related words from the same root include ebullient, ebullition, and — through Old French — bouillon.
Related word forms
How ebullience is actually used
Ebullience is a somewhat literary or formal word, most often used to describe personality and demeanor in positive terms. It carries a warm, approving connotation, suggesting energy that is spontaneous rather than forced.
Easily confused with ebullience
Effervescence refers to bubbling of a liquid or lively excitement, often with a fizzy connotation, whereas ebullience emphasizes overflowing enthusiasm and high spirits in a person.