Eldest

Synonyms for old
adj advanced in age

gray
ancient
tired
elderly
decrepit
venerable
mature
aged
senior
veteran

fossil
versed
debilitated
exhausted
experienced
grizzled
hoary
impaired
inactive
infirm

matured
olden
seasoned
senile
skilled
superannuated
wasted
along in years
broken down
enfeebled

geriatric
getting on
gray-haired
not young
oldish
over the hill
past one’s prime

Antonyms for eldest

young
youthful
inexperienced
current

modern
up-to-date
new
green

fresh
contemporary
late
recent

Synonyms
adj obsolete, outdated

antique
age-old
venerable
crumbling
old-fashioned
primitive
former
traditional
old-time
outmoded
original
antediluvian
relic

bygone
past
aboriginal
remote
antiquated
archaic
dated
decayed
done
early
erstwhile
hackneyed
immemorial

late
moth-eaten
once
onetime
out-of-date
passé
primeval
primordial
pristine
rusty
sometime
stale
superannuated

unfashionable
unoriginal
worn-out
olden
quondam
cast-off
demode
of old
of yore
oldfangled
time-worn

Antonyms

modern
up-to-date
current
young

youthful
new
fresh
present

contemporary
recent

Synonyms
adj traditional, long-established

familiar
age-old
established
firm
constant
perennial
versed

solid
vintage
veteran
steady
continuing
enduring
experienced

hardened
inveterate
lifelong
long-lasting
perpetual
practiced
skilled

time-honored
long-lived
of long standing
staying

Antonyms

unstable
changeable
unsteady
interrupted
untrustworthy
intermittent
inexperienced
young

youthful
current
modern
up-to-date
soft
weak
wavering
green

broken
fresh
new
contemporary
late
recent