Meaning

• Bound or obliged in law or equity; responsible; answerable.

  "1748. David Hume. Enquiries concerning the human understanding and concerning the principles of moral. London: Oxford University Press, 1973. § 34."

• Subject; susceptible.

  "A man liable to heart disease."

• Exposed to a certain contingency or causality, more or less probable.

• (as predicate, with "to" and an infinitive) likely.

  "Someone is liable to slip on your icy sidewalk."