What is the meaning of liable?

adjective

• At risk of or subject to experiencing something usually unpleasant.
  • usage: "he is apt to lose"; "she is liable to forget"
  • synonyms: apt
• Subject to legal action.
  • usage: "liable to criminal charges"
• Often followed by `to'. ( likely to be affected with)
  • usage: "liable to diabetes"
  • synonyms: nonimmune, nonresistant, unresistant
• Held legally responsible.
  • usage: "men between the ages of 18 and 35 were liable for military service"