undisturbed

from WordNet (r) 3.0 (2006)

undisturbed
    adj 1: untroubled by interference or disturbance; "he could
           pursue his studies undisturbed"

from The Collaborative International Dictionary of English v.0.48

Undisturbed \Undisturbed\
   See {disturbed}.

from Moby Thesaurus II by Grady Ward, 1.0

51 Moby Thesaurus words for "undisturbed":
      at rest, calm, cloistered, cool, dwindling, ebbing, even-tenored,
      halcyon, hushed, impassive, isolated, moldering, pacific,
      peaceable, peaceful, placid, quiescent, quiet, reposeful, reposing,
      restful, resting, secluded, sequestered, sequestrated, sheltered,
      smooth, still, still as death, stillish, stilly, stoic, stolid,
      subsiding, tranquil, unagitated, unbothered, unexcited,
      unflustered, unimpassioned, unmoved, unperturbed, unplagued,
      unruffled, unstirred, unstirring, untormented, untroubled, unvexed,
      unworried, waning