The Collaborative International Dictionary of English v.0.48:

Armored \Ar"mored\, a.
   Clad with armor.
   [1913 Webster]

WordNet (r) 3.0 (2006):

armored
    adj 1: protected by armor (used of persons or things military)
           [syn: armored, armoured] [ant: unarmored,
           unarmoured]
    2: used of animals; provided with protective covering [syn:
       armored, armoured] [ant: unarmored, unarmoured]
    3: equipped with the complete arms and armor of a warrior [syn:
       armored, panoplied]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "armored":
   armed cap-a-pie, armor-plated, cased, ceiled, cloaked, clouded,
   coated, coped, covered, covert, cowled, curtained, eclipsed,
   encapsulated, encapsuled, encased, enveloped, enwrapped, filmed,
   floored, hooded, housed, in armor, in complete steel, in harness,
   ironclad, loricate, loricated, mailclad, mailed, mantled, masked,
   muffled, obscured, occulted, packaged, panoplied, paved, roofed-in,
   screened, scummed, sheathed, shelled, shielded, shrouded, swathed,
   tented, under cover, veiled, walled, walled-in, wrapped