noun
lively or enthusiastic expression of thoughts or feelings
her bubbling ebullience was infectious
Synonyms: buoyancy, effervescence, exuberance, exuberancy
Related Word: animation, enthusiasm, gaiety, high-spiritedness, liveliness, vitality, vivaciousness, vivacity; agitation, excitement, exhilaration, ferment
Contrasted words: apathy, impassivity, languor, lethargy, listlessness, passivity, sluggishness, stolidity, torpidity, torpor; enervation, inactivity, inertia, lifelessness; disinterest, unconcern, uninterest