unboundless
adjEtymology From un- + boundless (with un- functioning as an intensifier). Compare unlimitless.
1
Obsolete limitless; unbounded
- He possessed not the unboundless fertility of invention of Priestley […]1845, Jordan Roche Lynch, The Hunterian Oration, page 8:
- [F]rom the unboundless depths of the earth, is heard a roaring and shrieking, as though all the thunders of the universe were combined in that one spot, and the ground vibrates for miles around, as if shaken by an earthquake.1858, A. L. Stimson, History of the Express Companies, page 264: