1. 
2. 
[syn: disaffected, ill-affected, malcontent, rebellious]
3.  participating in organized resistance to a constituted government; 
- Example: "the rebelling confederacy"
The Collaborative International Dictionary of English v.0.48:
Rebellious \Re*bel"lious\ (r[-e]*b[e^]l"y[u^]s), a.
   Engaged in rebellion; disposed to rebel; of the nature of
   rebels or of rebellion; resisting government or lawful
   authority by force. "Thy rebellious crew." "Proud rebellious
   arms." --Milton. -- Re*bel"lious*ly, adv. --
   Re*bel"lious*ness, n.
   [1913 Webster]
WordNet (r) 3.0 (2006):
rebellious
    adj 1: resisting control or authority; "temperamentally
           rebellious"; "a rebellious crew"
    2: discontented as toward authority [syn: disaffected, ill-
       affected, malcontent, rebellious]
    3: participating in organized resistance to a constituted
       government; "the rebelling confederacy"
Moby Thesaurus II by Grady Ward, 1.0:
100 Moby Thesaurus words for "rebellious":
   alienated, beefing, bellyaching, bitching, breakaway, complaining,
   complaintful, contumacious, crabbing, crabby, cranky, croaking,
   defiant, difficult, disaffected, disappointed, discontented,
   disgruntled, disobedient, displeased, disputatious, disputing,
   dissatisfied, dissentient, dissenting, envious, estranged, extreme,
   extremistic, factious, faultfinding, fractious, griping, grouchy,
   grousing, growling, grumbling, incorrigible, insubordinate,
   insurgent, insurrectionary, malcontent, malcontented, murmuring,
   mutineering, mutinous, muttering, noncooperative, objecting,
   obstinate, obstructive, on the barricades, out of humor, peevish,
   petulant, proof against, protesting, querulant, querulous, rebel,
   recalcitrant, refractory, reluctant, renitent, repellent,
   resentful, resistant, resisting, resistive, restive, restless,
   retardant, retardative, revolutional, revolutionary, riotous,
   seditionary, seditious, stubborn, subversive, sulky, traitorous,
   treasonable, turbulent, unaccepting, unaccommodating,
   uncooperative, uneasy, unfulfilled, ungovernable, ungratified,
   unhappy, unmanageable, unruly, unsatisfied, unsubmissive,
   unyielding, up in arms, whiny, withstanding