1. (n.) The act of exciting, or the state of being roused into action, or of having increased action; impulsion; agitation; as, an excitement of the people.

2. (n.) That which excites or rouses; that which moves, stirs, or induces action; a motive.

3. (n.) A state of aroused or increased vital activity in an organism, or any of its organs or tissues.

action activity ado aggravation agitation anger animation anxiety ardency ardor arousal arousing bluster bobbery boil boiling breathless impatience brouhaha bustle chafing churn commotion conturbation discomfort discomposure disorder disquiet disquietude disturbance eagerness ebullience ebullition ecstasy electrification embroilment enthusiasm exacerbation exasperation excitation exhilaration ferment fermentation fervency fervidity fervidness fervor fever feverishness fidgets fire fireworks firing flap flurry fluster flutteration foment fomentation fretfulness fretting fume furor fury fuss galvanization gusto haste heart heartiness heat hubbub hurly-burly impassionedness impatience impatientness impetuousness incitation incitement inflammation infuriation inquietude instigation irritation jitters jumpiness lather lathering up liveliness love maelstrom malaise moil nerviness nervosity nervousness passion passionateness pep rally pep talk perturbation provocation rabble-rousing relish restiveness restlessness roil rout row savor seethe seething sexual desire soul spirit steaming up stew stimulation stimulus stir stirring stirring up stirring-up sweat swirl tense readiness tension to-do trepidation trepidity tumult tumultuation turbidity turbulence turmoil twitter unease uneasiness unpatientness unquietness unrest upset vehemence verve warmth warmth of feeling whipping up working up zeal