strenuous, spirited, forceful, robust, intense, fierce, energetic, strident, vehement, rigorous, relentless, aggressive, impassioned, fervent, concerted, diligent, lively, vociferous, resolute, frenetic, unceasing, zealous, thorough, tireless, strong, ferocious, thoughtful, tenacious, intensive, brisk, assiduous, feverish, fervid, earnest, persistent, healthy, ceaseless, feisty, withering, frenzied, sustained, prolonged, skillful, unrelenting, active, muscular, assertive, lengthy, swift, purposeful, arduous, grueling, physical exertion, methodical, enthusiastic, invigorating, continuous, rapid, moderate, stiff, staunch, fulsome, inquisitional, wholehearted, perseverant, principled, eloquent, voluble, painstaking, stimulating, multipronged, gradual, skilful, passionate, torpid, indefatigable, unswerving, conscientious, vibrant, virile, persuasive, fruitful, cordial, dauntless, stout, supple, extensive, decorous, tepid, torrid, combative, calisthenic, gentle, serious, continual, protracted, ardent, unremitting, hearty, unflagging, forthright, untiring, ineffectual, vigourous, feeble, uninhibited, ordinated, violent, courageous, freest, futile, unfettered

allamanda cathartica, animation, backing, bambusa vulgaris, bang, bash, basket ash, beach goldenrod, belt, black ash, blunt, brio, brown ash, burn, burn off, buxomness, charley-horse, charley horse, churned-up, churning, clematis vitalba, common allamanda, common bamboo, counterblast, deaden, dovyalis caffra, dull, emerald creeper, energy, flamenco, flourishing, fraxinus nigra, gesticulation, golden trumpet, good health, growing, gusto, hale, hard, hardenbergia comnptoniana, healthiness, helianthemum, highland fling, hoop ash, huntingdon elm, improving, invigoration, jade vine, kei apple, kei apple bush, knock, knockout, newfoundland, old man's beard, pickaback plant, piggyback plant, power walking, prepossessing, provocation, recalcitrate, relish, riot act, rip, rottweiler, seaside goldenrod, set-to, severe, shower, smartly, smash, solidago sempervirens, spearfish, spiritedness, strong-minded, strongylodon macrobotrys, sunrose, sun rose, swing, thriving, tolmiea menziesii, toughly, traveler's joy, traveller's joy, trenchantly, tub-thumper, twistwood, twist wood, ulmus hollandica vegetata, up, vernal, vibrant, viburnum lantana, vigorously, vim, vitalise, vitality, vitalize, vivacious, vivification, walking shoe, wayfaring tree, western australia coral pea, whole, worrying, youth-on-age, youthful, zest, zestfulness

energetic, robust