I think you misquoted. The actual meaning is weakness of will to act according to one's better judgement.
From the wiki article ""lacking command" or "weakness", occasionally transliterated as acrasia or Anglicised as acrasy or acracy) is a lack of self-control, or acting against one's better judgment."
From the wiki article ""lacking command" or "weakness", occasionally transliterated as acrasia or Anglicised as acrasy or acracy) is a lack of self-control, or acting against one's better judgment."