A feeling of strong eagerness (usually in favor of a person or cause):
— They were imbued with a revolutionary ardor.

synonyms: ardour, elan, zeal.

Roget 682: activity; briskness, liveliness etc. adj.; animation, life, vivacity, spirit, dash, energy; snap, vim.    nimbleness, agility; smartness, quickness etc. adj.; velocity, etc. 274; alacrity, promptitude; despatch, dispatch; expedition; haste etc. 684; punctuality etc. (early) 132.    eagerness, zeal, ardor, perfervidum aingenium [Lat.], empressement [Fr.], earnestness, intentness; abandon; vigor etc. (physical energy) 171; devotion etc. (resolution) 604; exertion etc. 686.    industry, assiduity; assiduousness etc. adj.; sedulity; laboriousness; drudgery etc. (labor) 686; painstaking, diligence; perseverance etc. 604.1; indefatigation^†; habits of business.    vigilance etc. 459; wakefulness; sleeplessness, restlessness; insomnia; pervigilium^†, insomnium^†; racketing.    movement, bustle, stir, fuss, ado, bother, pottering, fidget, fidgetiness; flurry etc. (haste) 684.    officiousness; dabbling, meddling; interference, interposition, intermeddling; tampering with, intrigue.    press of business, no sinecure, plenty to do, many irons in the fire, great doings, busy hum of men, battle of life, thick of the action.    housewife, busy bee; new brooms; sharp fellow, sharp blade; devotee, enthusiast, zealot, meddler, intermeddler, intriguer, busybody, pickthank^†; hummer, hustler, live man [U.S.], rustler [U.S.].    ... show more

Roget 865: desire, wish, fancy, fantasy; want, need, exigency.    mind, inclination, leaning, bent, animus, partiality, penchant, predilection; propensity etc. 820; willingness etc. 602; liking, love, fondness, relish.    longing, hankering, inkling; solicitude, anxiety; yearning, coveting; aspiration, ambition, vaulting ambition; eagerness, zeal, ardor, empressement [Fr.], breathless impatience, overanxiety; impetuosity, etc. 825.    appetite, appetition^†, appetence^†, appetency^†; sharp appetite, keenness, hunger, stomach, twist; thirst, thirstiness; drouth, mouthwatering; itch, itching; prurience, cacoethes [Lat.], cupidity, lust, concupiscence.    edge of appetite, edge of hunger; torment of Tantalus; sweet tooth, lickerish tooth^†; itching palm; longing eye, wistful eye, sheep's eye.    [excessive desire for money] greed etc. 817.1. voracity etc. (gluttony) 957.    passion, rage, furore^†, mania, manie^†; inextinguishable desire; dipsomania, kleptomania.    [Person who desires] lover, amateur, votary, devotee, aspirant, solicitant, candidate, applicant, supplicant; cormorant etc. 957.    [Object of desire] desideratum; want etc. (requirement) 630; a consummation devoutly to be wished;" attraction, magnet, allurement, fancy, temptation, seduction, fascination, prestige, height of one's ambition, idol; whim, whimsy, whimsey^†; maggot; hobby, hobby-horse.    Fortunatus's cap; wishing cap, wishing stone, wishing well.    ... show more

Dutch: ijver, geestdrift, begeestering, hartstocht, bezieling, gloed

Intense feeling of love.

synonym: ardour.

Feelings of great warmth and intensity:
— He spoke with great ardor.

synonyms: ardour, fervency, fervidness, fervor, fervour, fire.

Roget 821: feeling; suffering etc. v.; endurance, tolerance, sufferance, supportance^†, experience, response; sympathy etc. (love) 897; impression, inspiration, affection, sensation, emotion, pathos, deep sense.    warmth, glow, unction, gusto, vehemence; fervor, fervency; heartiness, cordiality; earnestness, eagerness; empressement [Fr.], gush, ardor, zeal, passion, enthusiasm, verve, furore^†, fanaticism; excitation of feeling etc. 824; fullness of the heart etc. (disposition) 820; passion etc. (state of excitability) 825; ecstasy etc. (pleasure) 827.    blush, suffusion, flush; hectic; tingling, thrill, turn, shock; agitation etc. (irregular motion) 315; quiver, heaving, flutter, flurry, fluster, twitter, tremor; throb, throbbing; pulsation, palpitation, panting; trepidation, perturbation; ruffle, hurry of spirits, pother, stew, ferment; state of excitement.    ... show more

Polish: ognistość