4 occurrences across the corpus

OT Pseudepigrapha

The Sibylline Oracles 4:204

And reckless evil deeds, and of the pious

The Sibylline Oracles 5:251

Reckless in evils, treasury of toils,

The Sibylline Oracles 8:126

Alas, alas for thee, thou reckless land,

The Sibylline Oracles 11:149

Shall upon seven strong hills with reckless soul