A lackwit is a person whose mental development is considered impaired when compared to his/her chronological age. Reasons range from birth defects to injuries sustained during childhood. A more polite term to refer to them is simple. Lowborn lackwits often find themselves in menial positions of servitude. Meanwhile, lackwits that belong to noble houses remain under the care of their families and may be employed in marriage alliances - considered poor matches, obviously - but remain the subject of mockery and shame.