Strong

powerful able active vigorous sturdy robust tough hardy sound athletic muscular stalwart energetic firm solid durable hearty big capable mighty forceful fixed well-built well-made stable enduring heavy secure steady stout substantial tenacious unyielding able-bodied hale strapping hard as nails reinforced heavy-duty forcible in fine feather rugged sinewy stark staunch well-founded

dedicated firm staunch resolute steadfast tenacious unyielding forceful intense eager brave courageous tough hard-nosed iron-willed independent resilient uncompromising vehement keen aggressive pushy fervent fervid potent plucky gutsy resourceful intelligent clear cogent perceptive sagacious self-assertive take charge severe deep fierce violent wicked zealous mean handful unbending

clear sharp marked great powerful firm hard cogent telling effective forceful sound urgent weighty influential persuasive compelling convincing potent secure fast stiff trenchant formidable mighty overpowering redoubtable well-established well-founded stimulating clear-cut

intense acute severe drastic strict sharp keen forceful draconian