Unnoticed
Pathfinder Core Rulebook (Second Edition), page 623
If you are unnoticed by a creature, that creature has no idea you are present at all. When you’re unnoticed, you’re also undetected by the creature. This condition matters for abilities that can be used only against targets totally unaware of your presence.
REDUNDANT CONDITIONS
You can have a given condition only once at a time. If an effect would impose a condition you already have, you now have that condition for the longer of the two durations. The shorter-duration condition effectively ends, though other conditions caused by the original, shorter-duration effect might continue.
For example, let’s say you have been hit by a monster that drains your vitality; your wound causes you to be enfeebled 2 and flat-footed until the end of the monster’s next turn. Before the end of that creature’s next turn, a trap poisons you, making you enfeebled 2 for 1 minute. In this case, the enfeebled 2 that lasts for 1 minute replaces the enfeebled 2 from the monster, so you would be enfeebled 2 for the longer duration. You would remain flat-footed, since nothing replaced that condition, and it still lasts only until the end of the monster’s next turn. Any ability that removes a condition removes it entirely, no matter what its condition value is or how many times you’ve been affected by it. In the example above, a spell that removes the enfeebled condition from you would remove it entirely—the spell wouldn’t need to remove it twice.
Redundant Conditions with Values
Conditions with different values are considered different conditions. If you’re affected by a condition with a value multiple times, you apply only the highest value, although you might have to track both durations if one has a lower value but lasts longer. For example, if you had a slowed 2 condition that lasts 1 round and a slowed 1 condition that lasts for 6 rounds, you’d be slowed 2 for the first round, and then you’d change to slowed 1 for the remaining 5 rounds of the second effect’s duration. If something reduces the condition value, it reduces it for all conditions of that name affecting you. For instance, in this example above, if something reduced your slowed value by 1, it would reduce the first condition from the example to slowed 1 and reduce the second to slowed 0, removing it.
