eternal
1. [ adjective ] continuing forever or indefinitely
Synonyms: everlasting perpetual unending unceasing 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 ] lasting for an indefinitely long period of time
Synonyms: lasting eonian aeonian everlasting
Related terms: immortal
3. [ adjective ] tiresomely long; seemingly without end
Synonyms: endless interminable
Examples:

"endless debates" "an endless conversation" "the wait seemed eternal" "eternal quarreling" "an interminable sermon"

Related terms: long
Similar spelling:   eternally
  eternalize
  eternalise
  Ethrane
  ethernet
  eternize
  eternity
  eternise