perennial
- adjective (adj)
Meaning: enduring, perpetual
Synonyms:
abiding
annual
ceaseless
chronic
constant
continual
continuing
deathless
durable
eternal
everlasting
immortal
imperishable
incessant
inveterate
lasting
lifelong
long-lasting
long-lived
longstanding
never-ending
old
perdurable
permanent
persistent
recurrent
seasonal
sustained
unceasing
unchanging
undying
unfailing
uninterrupted
yearlong
yearly
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.