shortHe received a short jail sentence.
quickI need to make a quick phone call - I'll be right back.
briefWe had a brief chat this morning.
momentaryIt was just a momentary lapse in judgment - I won't do it again.
fleetingWe had a fleeting glimpse of the sea as we drove down the motorway.
short-livedThe tabloids reported on the celeb's short-lived marriage.
transientformalThe book explores the transient nature of fame.
transitoryformalOur existence in this world is transitory.
ephemeralTheir alliance, however ephemeral, was important to stabilise the region.