The Collaborative International Dictionary of English v.0.48:

Pictorial \Pic*to"ri*al\, a. [L. pictorius, fr. pictor a
   painter, fr. pingere to paint. See Paint.]
   Of or pertaining to pictures; illustrated by pictures;
   forming pictures; representing with the clearness of a
   picture; as, a pictorial dictionary; a pictorial imagination.
   "Pictorial rhetoric." --Ruskin. -- Pic*to"ri*al*ly, adv.
   [1913 Webster] Pictoric

WordNet (r) 3.0 (2006):

pictorial
    adj 1: pertaining to or consisting of pictures; "pictorial
           perspective"; "pictorial records" [syn: pictorial,
           pictural]
    2: evoking lifelike images within the mind; "pictorial poetry
       and prose"; "graphic accounts of battle"; "a lifelike
       portrait"; "a vivid description" [syn: graphic, lifelike,
       pictorial, vivid]
    n 1: a periodical (magazine or newspaper) containing many
         pictures

Moby Thesaurus II by Grady Ward, 1.0:

66 Moby Thesaurus words for "pictorial":
   annual, apish, bimonthly, biweekly, clear, daily, daybook,
   delineatory, depictive, diary, echoic, embodying, ephemeris,
   explicit, expressive, figurative, fortnightly, freehand, gazette,
   graphic, ideographic, illustrational, illustrative, imitative,
   incarnating, journal, limning, lucid, magazine, mimetic, mimish,
   monochrome, monthly, newsmagazine, onomatopoeic, organ, painty,
   pastose, periodical, personifying, photographic, pictographic,
   picturable, pictural, picturesque, plain, polychrome, portraying,
   quarterly, representational, representative, representing, review,
   scenographic, scumbled, serial, simulative, slick magazine,
   striking, symbolizing, telling, trade magazine, typifying, vivid,
   weekly, yearbook