Potent
 

potent
adjective1.having great influence2.having or wielding force or authority; "providing the ground soldier with increasingly potent weapons"3.having a strong physiological or chemical effect; "a potent toxin"; "potent liquor"; "a potent cup of tea", "a stiff drink"[ant: impotent]4.(of a male) capable of copulation[ant: impotent]