ephe·mer·al 30206

e·phem·er·al   /ɪˈfɛmərəl/ Show Spelled
[ih-fem-er-uhl] Show IPA

–adjective
1. lasting a very short time; short-lived; transitory: the ephemeral joys of childhood.
2. lasting but one day: an ephemeral flower.
–noun
3. anything short-lived, as certain insects.