Impressive

a.	1.	Making, or tending to make, an impression; having power to impress; adapted to excite attention and feeling, to touch the sensibilities, or affect the conscience; as, an impressive discourse; an impressive scene.
	2.	Capable of being impressed.

Adj.	1.	impressive - making a strong or vivid impression; "an impressive ceremony" Antonyms: unimpressive - not capable of impressing
	2.	impressive - producing a strong effect; "gave an impressive performance as Othello"; "a telling gesture" Synonyms: telling

Babylonian, Corinthian, absolute, acid, agitating, alive to, arousing, assuring, august, authoritative, aware, awe-inspiring, awesome, awful, barbaric, biting, breathtaking, charged, cliff-hanging, cognizant, conclusive, conscious, convictional, convincing, corrosive, cutting, decisive, deluxe, determinative, disquieting, distracting, disturbing, driving, effective, elaborate, electric, elegant, evocative, exhilarating, extravagant, fancy, fine, forceful, forcible, formidable, galvanic, glorious, gorgeous, grand, gutsy, heady, heart-expanding, heart-stirring, heart-swelling, heart-thrilling, imperative, impressible, impressionable, incisive, inflammatory, intoxicating, jarring, jolting, lavish, luxurious, maddening, magnificent, mind-blowing, mordant, nervous, noble, notable, overcoming, overmastering, overpowering, overwhelming, palatial, penetrating, perceptive, persuasive, perturbing, piercing, piquant, plush, poignant, portentous, posh, powerful, princely, proud, provocative, provoking, punchy, ravishing, receptive, redoubtable, ritzy, satisfactory, satisfying, sensational, sensible, sensile, sensitive to, sentient, sinewed, sinewy, slashing, soul-stirring, spirit-stirring, splendacious, splendiferous, stately, stimulating, stimulative, stirring, strong, sumptuous, superb, superfancy, superfine, susceptible, susceptive, suspenseful, suspensive, swank, swanky, swell, tantalizing, telling, thrilly, touching, trenchant, troubling, unsettling, upsetting, vigorous, vital