setback
UK: ˈsɛtbæk | US: ˈsɛtˌbæk
n. an event that delays progress or reverses success
n. a reversal or defeat in a plan or endeavor
n. (architecture) a steplike recession in a wall
The word "setback" combines "set" (from Old English settian, meaning "to place firmly") and "back" (from Old English bæc, meaning "reverse direction"). Originally used in architecture (16th century) to describe a steplike recession in a wall, it later evolved metaphorically (18th century) to denote any reversal of progress. The logic is clear: just as a wall "steps back," progress can be "pushed back" by obstacles.
The team faced a major setback when their lead developer resigned.
Bad weather caused a setback in the construction schedule.
Her illness was a temporary setback, but she recovered quickly.
The new regulations posed a setback for the company’s expansion plans.
In Gothic architecture, setbacks are often used for decorative effect.