Synonyms of unended

2 Syllables
undying, deathless, constant
3 Syllables
perennial, persistent, continuing, perpetual, eternal, immortal, unfading, permanent, unceasing, unending
4 Syllables
everlasting, infinite
5 Syllables
undiminished, interminable, imperishable, indestructible
6 Syllables
inextinguishable