Setback/ˈsetbæk/ Definition 1 of 2Pro Tip 1/3Unexpected Delays A setback refers to unexpected problems delaying plans or goals, not routine ones. Despite studying hard, failing the test was a real setback. Pro Tip 2/3Negative Connotations Setback implies a negative impact on progress, often causing disappointment. Losing the contract was a significant setback for the company. Pro Tip 3/3Not Permanent A setback is usually seen as a temporary challenge that can be overcome. The project had a few setbacks, but the team is back on track now.