Hypertext Webster Gateway: "setback"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Setback \Set"back`\, n.
1. (Arch.) Offset, n., 4.
2. A backset; a countercurrent; an eddy. [U. S.]
3. A backset; a check; a repulse; a reverse; a relapse.
[Colloq. U.S.]
From WordNet (r) 1.7 (wn)
setback
n : an unfortunate happening that hinders of impedes; something
that is thwarting or frustrating [syn: {reverse}, {reversal},
{blow}]
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