Synonyms of long-lived

1 Syllable
old
2 Syllables
yearlong, pursuing, chronic, lasting
3 Syllables
enduring, durable, perennial, persistent, livelong, lingering, hardcore, long-lasting, abiding, advancing, long-standing, maintaining, persisting, progressing, lifelong, permanent, sustaining
4 Syllables
perdurable, persevering, ever-present, unabating
5 Syllables
inveterate, long-established