unceasing
1. [ adjective ] continuing forever or indefinitely
Synonyms: eternal perpetual everlasting unending ageless
Examples:

"the ageless themes of love and revenge" "eternal truths" "life everlasting" "hell's perpetual fires" "the unending bliss of heaven"

Related terms: permanent
2. [ adjective ] uninterrupted in time and indefinitely long continuing
Synonyms: ceaseless never-ending incessant perpetual unremitting constant
Examples:

"the ceaseless thunder of surf" "in constant pain" "the incessant noise of the city" "the never-ending search for happiness" "the perpetual struggle to maintain standards in a democracy"

Related terms: continuous
Similar spelling:   unceasingly
  unexacting
  unassigned
  unassignable
  uncase
  unseasoned
  unassisted
  uncousinly