ephemeral
adjective
[ ɪˈfɛm(ə)r(ə)l ]
• lasting for a very short time.
• "fashions are ephemeral: new ones regularly drive out the old"
Similar:
transitory,
transient,
fleeting,
passing,
short-lived,
momentary,
brief,
short,
cursory,
temporary,
impermanent,
short-term,
fading,
evanescent,
fugitive,
fly-by-night,
fugacious,
ephemeral
noun
• an ephemeral plant.
• "ephemerals avoid the periods of drought as seeds"
Origin:
late 16th century: from Greek ephēmeros (see ephemera) + -al.