setback

[ set-bak ]

noun

1. a check to progress; a reverse or defeat:

   The new law was a setback.

2. Architecture. a recession of the upper part of a building from the building line, as to lighten the structure or to permit a desired amount of light and air to reach ground level at the foot of the building.
3. an act or instance of setting back:

   A nightly setback of your home thermostats can save a great deal of fuel.

4. Also a downward temperature adjustment of a thermostat, especially performed automatically, as by a timer.

Word History and Origins

Origin of setback¹

First recorded in 1665–75; noun use of verb phrase set back

Related Words

• blow
• defeat
• delay
• difficulty
• hindrance
• impediment
• misfortune
• obstacle
• reversal
• set-back
• slowdown
• stumbling block
• trouble