The Collaborative International Dictionary of English v.0.48:

Disobedience \Dis`o*be"di*ence\, n.
   Neglect or refusal to obey; violation of a command or
   prohibition.
   [1913 Webster]

         He is undutiful to him other actions, and lives in open
         disobedience.                            --Tillotson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

disobedience
    n 1: the failure to obey [syn: disobedience, noncompliance]
         [ant: abidance, compliance, conformation,
         conformity, obedience, obeisance]
    2: the trait of being unwilling to obey [ant: obedience]

Moby Thesaurus II by Grady Ward, 1.0:

85 Moby Thesaurus words for "disobedience":
   abnegation, antipathy, averseness, aversion, backwardness,
   contradiction, cursoriness, declension, declination, declinature,
   declining, denial, deprivation, disagreement, disallowance,
   disclaimer, disclamation, disinclination, disrelish, dissent,
   distaste, foot-dragging, fractiousness, grudging consent,
   grudgingness, holding back, indiscipline, indisposedness,
   indisposition, indocility, insubordination, interregnum,
   intractableness, irresponsibility, lack of enthusiasm,
   lack of zeal, lawlessness, license, licentiousness, mutinousness,
   mutiny, nay, negation, negative, negative answer, nix, no,
   nolition, nonacceptance, noncompliance, nonconsent, nonobservance,
   obstinacy, opposition, perfunctoriness, power vacuum, rampant will,
   recalcitrance, recalcitrancy, recantation, refractoriness, refusal,
   rejection, reluctance, renitence, renitency, repudiation,
   repugnance, resistance, retention, slowness, stubbornness, sulk,
   sulkiness, sulks, sullenness, thumbs-down, turndown,
   unaccountability, uncontrol, unenthusiasm, unrestraint,
   unwillingness, willfulness, withholding



Bouvier's Law Dictionary, Revised 6th Ed (1856):

DISOBEDIENCE. The want of submission to the orders of a superior.
     2. In the army, disobedience is a misdemeanor.
     3. For disobedience to parents, children may be punished; and
apprentices may be imprisoned for disobedience to the lawful commands of
their master. Vide Correction.



The Devil's Dictionary (1881-1906):

DISOBEDIENCE, n.  The silver lining to the cloud of servitude.