The Collaborative International Dictionary of English v.0.48:

Good-natured \Good`-na"tured\, a.
   Naturally mild in temper; not easily provoked; amiable;
   cheerful; not taking offense easily; as, too good-natured to
   resent a little criticism; the good-natured policeman on our
   block; the sounds of good-natured play. Opposite of
   ill-natured. [Narrower terms: equable, even-tempered,
   good-tempered, placid ] Also See: {kind, pleasant,
   agreeable, good-natured, pleasing.
   [WordNet 1.5]

   2. to one's own liking or feelings or nature; pleasing; -- of
      people. Opposite of disagreeable.

   Syn: agreeable, pleasing.
        [WordNet 1.5]

   Syn: Good-natured, Good-tempered, Good-humored.

   Usage: Good-natured denotes a disposition to please and be
          pleased. Good-tempered denotes a habit of mind which
          is not easily ruffled by provocations or other
          disturbing influences. Good-humored is applied to a
          spirit full of ease and cheerfulness, as displayed in
          one's outward deportment and in social intercourse. A
          good-natured man recommends himself to all by the
          spirit which governs him. A good-humored man
          recommends himself particularly as a companion. A
          good-tempered man is rarely betrayed into anything
          which can disturb the serenity of the social circle.
          [1913 Webster]

WordNet (r) 3.0 (2006):

good-natured
    adj 1: having an easygoing and cheerful disposition; "too good-
           natured to resent a little criticism"; "the good-natured
           policeman on our block"; "the sounds of good-natured
           play" [ant: ill-natured]

Moby Thesaurus II by Grady Ward, 1.0:

43 Moby Thesaurus words for "good-natured":
   acquiescent, affable, agreeable, altruistic, amiable, amicable,
   benevolent, bonhomous, charitable, cheerful, complaisant,
   compliant, considerate, cooperative, cordial, courteous, easy,
   easy-natured, easygoing, equable, friendly, generous, genial,
   gentle, good-hearted, good-humored, good-tempered, gracious, kind,
   kindly, lenient, mellow, mild, nice, obliging, pleasant, sweet,
   sweet-tempered, tolerant, warm, warm-hearted, well-natured,
   willing