Flat-Footed

A flat-footed character; loses their Dexterity bonus to General, Reflex, & Combat Maneuver Defense. While flat-footed the character cannot make attacks of opportunity, unless they have the Combat Reflexes feat or Uncanny Dodge class talent; and they cannot take swift actions or reactions.

Characters with Uncanny Dodge retain their Dexterity bonus to their Defenses and can make attacks of opportunity while Flat-Footed.