different between unceasing vs boundless

English

un- +? ceasing

unceasing (comparative more unceasing, superlative most unceasing)

bound +? -less

boundless (comparative more boundless, superlative most boundless)

Without bounds, unbounded.
- 1785, William Cowper, “The Garden”, in The Task, a Poem, in Six Books. By William Cowper [...] To which are Added, by the Same Author, An Epistle to Joseph Hill, Esq. Tirocinium, or a Review of Schools, and The History of John Gilpin, London: Printed for J[oseph] Johnson, No. 72 St. Paul's Church-Yard, OCLC 221351486; republished as The Task. A Poem. In Six Books. To which is Added, Tirocinium: or, A Review of Schools, new edition, Philadelphia, Pa.: Printed for Thomas Dobson, bookseller, in Second-street, second door above Chestnut-street, 1787, OCLC 23630717, page 87:
  'Tis the cruel gripe, / That lean hard-handed poverty inflicts, / The hope of better things, the chance to win, / The wi?h to ?hine, the thir?t to be amus'd, / That at the found of Winter's hoary wing, / Unpeople all our counties, of ?uch herds, / Of flutt'ring, loit'ring, cringing, begging, loo?e, / And wanton vagrants, as make London, va?t / And boundless as it is, a crowded coop.

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