(a.) Having the power of infusion; inspiring; influencing.

activating agitating animating animative bracing breathtaking brisk charged cheerful cheering cheery cliff-hanging comforting cordial crisp crispy delightful disquieting distracting disturbing elating electric elevating encouraging energizing enlivening exciting exhilarative fortifying fresh galvanic glad gladdening good happy heady heart-expanding heart-stirring heart-swelling heart-thrilling heart-warming heartening impressive inflammatory infusive inspirational inspiring inspiriting intoxicating invigorating invigorative jarring jolting joyful maddening mind-blowing moving overcoming overmastering overpowering overwhelming perturbing piquant provocative provoking quickening ravishing reassuring refreshful refreshing regaling rejuvenating restorative rousing soul-stirring spirit-stirring stimulating stimulative stirring striking suspenseful suspensive tantalizing telling thrilling thrilly tonic troubling unsettling uplifting upsetting viable vitalizing vivifying zestful zesty