Parapraxis

A minor error, such as a slip of the tongue, thought to reveal a repressed motive. Ex) a Freudian slip

Wabi-sabi

Wabi-sabi represents a comprehensive Japanese world view or aesthetic centered on the acceptance of transience and imperfection. The aesthetic is sometimes described as one of beauty that is "imperfect, impermanent, and incomplete".

Mountebank

1. A person who deceives others, esp. in order to trick them out of their money; a charlatan.
2. A person who sold patent medicines in public places.