1. 
[syn: amusing, comic, comical, funny, laughable, mirthful, risible]
The Collaborative International Dictionary of English v.0.48:
Comical \Com"ic*al\, a.
   1. Relating to comedy.
      [1913 Webster]
            They deny it to be tragical because its catastrophe
            is a wedding, which hath ever been accounted
            comical.                              --Gay.
      [1913 Webster]
   2. Exciting mirth; droll; laughable; as, a comical story.
      "Comical adventures." --Dryden.
   Syn: Humorous; laughable; funny. See Droll. --
        Com"ic*al*ly, adv. -- Com"ic*al"ness, n.
        [1913 Webster]
WordNet (r) 3.0 (2006):
comical
    adj 1: arousing or provoking laughter; "an amusing film with a
           steady stream of pranks and pratfalls"; "an amusing
           fellow"; "a comic hat"; "a comical look of surprise";
           "funny stories that made everybody laugh"; "a very funny
           writer"; "it would have been laughable if it hadn't hurt
           so much"; "a mirthful experience"; "risible courtroom
           antics" [syn: amusing, comic, comical, funny,
           laughable, mirthful, risible]
Moby Thesaurus II by Grady Ward, 1.0:
19 Moby Thesaurus words for "comical":
   absurd, broad, burlesque, comic, droll, farcical, foolish, funny,
   impish, ludicrous, mock-heroic, ridiculous, roguish, silly,
   slapstick, sportive, tragicomic, visible, waggish