MEANING:
noun:
1. An easy life, especially devoted to sensual pleasure.
2. A path of least resistance, especially one that ends in disaster.
ETYMOLOGY:
From Latin prima rosa (first rose). Earliest documented use: 1604.
USAGE:
"Meanwhile, Katich clung on; the primrose path is not for him. The road is strewn with rocks."
Peter Roebuck; Victory in Sight, But Punter's Job Far From Over; The Sydney Morning Herald (Australia); Oct 5, 2010.