a. rare. [f. CURB sb. + -LESS.] Without curb or restraint.

1

1813.  T. Busby, trans. Lucretius, III. 322, II. 21.

        The curbless rage inflames his savage blood,
And drives him foaming through the frightened wood.

2

1847.  C. Brontë, Jane Eyre, I. ix. 137. A torrent, turbid and curbless.

3