Exchangeably is an adverb that means "capable of being exchanged" or "interchangeably." There are several synonyms for the word exchangeably, including reciprocally, alternately, mutably, vicariously, and interchangeably. Reciprocally refers to the exchange of actions or services between two parties. Alternately means "one after the other," indicating a repetitive exchange. Mutably refers to the ability to change or switch places. Vicariously refers to an experience felt through another person. Interchangeably means the ability to use one thing in place of another without any noticeable difference. These synonyms all refer to the exchange or substitution of one thing for another.