weak link

from Moby Thesaurus II by Grady Ward, 1.0
39 Moby Thesaurus words for "weak link":
      assailability, blemish, bug, catch, chink, crack, defect,
      defection, deficiency, drawback, failing, failure, fault, faute,
      flaw, foible, frailty, heel of Achilles, hole, imperfection,
      inadequacy, infirmity, kink, little problem, penetrability,
      pregnability, problem, rift, shortcoming, snag, soft spot,
      something missing, taint, vincibility, vulnerability,
      vulnerable place, vulnerable point, weak point, weakness