Other forms: setbacks
A setback is a problem that throws your progress backwards. A serious setback, suffer a setback, a temporary setback.
It is the standard word for a reverse that is not final — calling something a setback rather than a failure is a choice about tone as well as facts. Suffer a setback and a major setback are near-fixed phrases in reporting. Note set back as two words, which is the verb: the delay set them back about four months; and that in architecture a setback is the distance a building stands from the road.
1nounsetbackA problem that throws progress backwards.
“Losing their best player to injury was a serious setback for the team.”
setback is a reverse in progress.
a deverbal from set back. Compare drawback.
Etymology from Wiktionary, CC BY-SA