(a.) Full of or processing force; exerting force; mighty.

accented accentuated acid active acute adventuresome adventurous aggressive ambitious animated armipotent assertive authoritative beefy biting bouncing brisk cogent compelling constraining convincing corrosive cutting decided doughty driving dynamic effective efficacious emphasized emphatic energetic enterprising enthusiastic forcible forcy full of pep full-blooded full-strength go-ahead go-go gutsy gutty hale hard hard as nails hardy hearty hefty high-potency high-powered high-pressure high-tension husky hustling imperative impetuous impressive in force in power in red letters incisive insistent intense iron-hard irresistible italicized keen kinetic lively living logical lusty manful meaty mettlesome mighty mighty in battle mordant nervous nervy obstinate operative penetrating peppy persuasive piercing pithy poignant pointed positive potent powerful prepotent puissant punchy punctuated pushful pushing pushy red-blooded resounding robust robustious rugged ruling sensational sinewed sinewy slashing smacking snappy spanking spirited stalwart starred steely stout strapping strenuous stressed striking strong strong as brandy strong as strong strong-willed sturdy take-charge take-over telling trenchant underlined underscored up-and-coming valid venturesome venturous vibrant vigorous virile vital vivacious vivid weighty zestful zesty zippy