Webster’s Revised Unabridged Dictionary · 1913
Thistly
This′tly (thĭs′ly̆), a. 1. Overgrown with thistles; as, thistly ground.
2. Fig.: Resembling a thistle or thistles; sharp; pricking.
In such a world, so thorny, and where none Finds happiness unblighted, or, if found, Without some thistly sorrow at its side. Cowper.