Here are some possible meanings depending on the context:
* A life confined to a monastery or convent: This is the most literal meaning of "cloistered." It suggests a life of prayer, contemplation, and limited interaction with the outside world.
* A life of social isolation: This could mean someone who avoids social interaction and prefers to stay at home.
* A life of limited experience: The woman might have led a life where she hasn't had many opportunities to learn and grow. This could be due to social or economic factors, or even a personal choice.
To understand the exact meaning, you need more context. For example:
* What was the woman's life like? Was she a nun, a recluse, or simply someone who lived a quiet life?
* What was the speaker trying to convey? Were they implying the woman was sheltered, naive, or perhaps even unhappy?
Please provide more context so I can give you a more accurate answer.