Meaning : At risk of or subject to experiencing something usually unpleasant.
Example :
He is apt to lose.
She is liable to forget.
Synonyms : apt
Meaning : Subject to legal action.
Example :
Liable to criminal charges.
Meaning : (often followed by `to') likely to be affected with.
Example :
Liable to diabetes.
Synonyms : nonimmune, nonresistant, unresistant
Meaning : Held legally responsible.
Example :
Men between the ages of 18 and 35 were liable for military service.