ephemeral /ɛˈfɛ.mə.ɹəl/adjective 3noun 1forms 3 adjective3 •Lasting for a short period of time.Esteem, lasting esteem, the esteem of good men, like himself, will be his reward, when the gale of ephemeral popularity shall have gradually subsided. — 1821 •Existing for only one day, as with some flowers, insects, and diseases. •Usually dry, but filling with water for brief periods during and after precipitation. noun1 •Something which lasts for a short period of time. formsephemerals · more ephemeral · most ephemeral