RichThesaurus
long-term
long-term
synonyms
lasting
continuing
durable
long-standing
abiding
stable
persisting
firm
enduring
fixed
permanent
constant
long-lasting
perennial
deep-rooted
lifelong
eternal
secure
remaining
persistent
everlasting
established
steady
long-lived
surviving
fast
steadfast
long-run
undying
semipermanent
prevailing
perdurable
perpetual
long-established
unending
unchanging
indelible
delayed
changeless
endless
incurable
immutable
sempiternal
unfading
long-running
unceasing
immedicable
constantly recurring
unwavering
unfaltering
more synonyms
long-term
antonyms
short-lived
ephemeral
temporary
precipitate
rapid
swift
new
p.d.q. (pretty damn quick)
quick
sudden
speedy
on-the-spot
rathe
prompt
snappy
direct
instantaneous
fleet
fleeting
express
instant
alacritous
expeditious
abrupt
immediate
lightning
short-term
shortlived
passing
transient
specific
recent
narrow
ending
ceasing
acute
hurried
hasty
curable
incomplete