[1] : The Collaborative International Dictionary of English v.0.48

sacrilegious \sac`rile"gious\, a. from sacrilege: cf. l.
   sacrilegus.
   violating sacred things; polluted with sacrilege; involving
   sacrilege; profane; impious.
   1913 webster

         above the reach of sacrilegious hands.   --pope.
   1913 webster -- sac`rile"giously, adv. --
   sac`rile"giousness, n.
   1913 webster
see also:
sac`rile"giously sac`rile"giousness 

[2] : WordNet (r) 2.0

sacrilegious
     adj : grossly irreverent toward what is held to be sacred;
           "blasphemous rites of a witches' sabbath"; "profane
           utterances against the church"; "it is sacrilegious to
           enter with shoes on" syn: blasphemous, profane
see also:
blasphemous profane 

[3] : Moby Thesaurus II by Grady Ward, 1.0

57 moby thesaurus words for "sacrilegious":
   aberrant, abnormal, abominable, apostate, atheistic, atrocious,
   backsliding, blasphemous, criminal, delinquent, deviant,
   disgraceful, disrespectful, evil, fallen, fallen from grace,
   hardly the thing, heretical, ignominious, illegal, impious,
   improper, inappropriate, incorrect, indecorous, infamous,
   irreligious, irreverent, lapsed, not done, not the thing, off-base,
   off-color, out-of-line, profanatory, profane, recidivist,
   recidivistic, recreant, renegade, scandalous, shameful, shameless,
   sinful, terrible, undue, undutiful, unfit, unfitting, ungodly,
   unlawful, unrighteous, unseemly, unsuitable, wicked, wrong,
   wrongful

Sacrilegious >> S Words
Sacrilegious, definition of term: Sacrilegious
sacrilegious_pag1.html