No strings attached (NSA) is a phrase used to describe a situation in which something is done with no additional conditions attached. Most commonly, this phrase is applied to a favor done where no reciprocation is expected. It is also used to describe a relationship that is exclusively sexual in nature.
The phrase no strings attached is usually used to describe an opportunity or offer that carries no conditions or restrictions with it. It is often used to describe sexual relations between two or more individuals. The phrase can be used to describe sexual favors offered with no terms or conditions attached or refer to a relationship status between individuals. The phrase is sometimes used interchangeably to refer to individuals in an open relationship. However, it should be noted that in an open relationship there are often different aspects and dynamics than those within a NSA relationship. Typically a NSA relationship signifies that there is no emotional attachment or committment. That may not be the case in an open relationship.
