in perpetuity
• forever.
• "all the Bonapartes were banished from France in perpetuity"
Similar:
forever,
permanently,
for always,
for good,
for good and all,
perpetually,
(for) evermore,
for ever and ever,
for all (future) time,
until the end of time,
eternally,
for eternity,
everlastingly,
forevermore,
for keeps,
until hell freezes over,
until doomsday,
for aye,
