lifelong
adjective
[ ˈlʌɪflɒŋ ]
• lasting or remaining in a particular state throughout a person's life.
• "the two men were to remain lifelong friends"
Similar:
lasting,
for all one's life,
lifetime's,
long-lasting,
long-standing,
long-term,
long-running,
persisting,
prevailing,
durable,
constant,
stable,
established,
steady,
steadfast,
secure,
fast,
firm,
fixed,
deep-rooted,
enduring,
continuing,
abiding,
remaining,
permanent,
eternal,
immutable,