Copout is a term used to describe a person's failure to fulfill their responsibility or obligation. Some common synonyms for copout include excuse, evasion, avoidance, fudging, dodge, shirk, or backing out. These synonyms carry a similar meaning to copout, as they all describe someone's lack of commitment or unwillingness to take responsibility. In some cases, these synonyms may carry a negative connotation and suggest a lack of integrity or courage. However, they can also be used in a more neutral way, simply describing a person's failure to follow through on a promise or commitment.