Synonyms: Stupid, Dumb, Mentally Broken
Drowsy is an Archetype, it is a special kind of Feat. A character can only have one Archetype in total. Apart from that, Archetypes are like normal Feats and may be taken at character creation or on any level up.
This Archetype may be used as a condition imposed on your character because of a poison, a disease or a hit on the head. In this case, the limit of one Archetype per character doesn't apply and you gain none of the advantages. But you will lose this condition at the end of the scenario.
Your character is mentally weak. This may come from a a poison, a disease, a hit on the head, a mental handicap, lack of education or simply very old age.
You will fail every time a complicated mental action is required. If you have some Feats associated to mental actions, you need to roll a die 6 every time you use them. On a 5 or 6, you may use your Feat normally as if not wounded at all.
Your character isn't completely irrational and won't take actions that would obviously harm the party or himself, like insult or hit an important character without any reason.
Advantage : You gain two Feats of your choice.