The Collaborative International Dictionary of English v.0.48:

Worshipful \Wor"ship*ful\, a.
   Entitled to worship, reverence, or high respect; claiming
   respect; worthy of honor; -- often used as a term of respect,
   sometimes ironically. "This is worshipful society." --Shak.
   [1913 Webster]

         [She is] so dear and worshipful.         --Chaucer.
   [1913 Webster] -- Wor"ship*ful*ly, adv. --
   Wor"ship*ful*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

worshipful
    adj 1: showing adoration [syn: adoring, worshipful]
    2: showing great reverence for god; "a godly man"; "leading a
       godly life" [syn: godly, reverent, worshipful]

Moby Thesaurus II by Grady Ward, 1.0:

104 Moby Thesaurus words for "worshipful":
   Christian, Christianlike, Christianly, acknowledged, admiring,
   admitted, adorant, adoring, apotheosizing, august, awe-inspiring,
   awed, awesome, awestricken, awestruck, awful, believing,
   conventional, creditable, cultish, cultist, cultistic, customary,
   deifying, devoted, devotional, devout, dreadful, dutiful,
   established, esteemed, estimable, faithful, fixed, folk, hallowed,
   handed down, held in esteem, hero-worshiping, heroic,
   highly esteemed, highly regarded, highly reputed,
   highly respectable, hoary, honorable, honored, idolatrous,
   idolizing, immemorial, imploring, in awe, in favor, in good odor,
   in high favor, in the dust, inveterate, legendary,
   long-established, long-standing, meritorious, mythological, noble,
   of long standing, of the folk, on bended knee, oral, pietistic,
   pious, prayerful, precative, precatory, prescriptive, prestigious,
   prostrate before, received, recognized, religious, reputable,
   respectable, respected, revered, reverend, reverent, reverential,
   rooted, solemn, suppliant, supplicant, supplicatory, theistic,
   time-honored, traditional, tried and true, true-blue, understood,
   unwritten, venerable, venerated, venerational, venerative,
   well-thought-of, worshiping, worthy