adj.短暂的,
Merriam-Webster Online Dictionary
ephemeral (adjective)1.
lasting one day only - an ephemeral fever
2.
lasting a very short time - ephemeral pleasures transient
something that lasts for a very short time something ephemeral , specifically a plant that grows, flowers, and dies in a few days
Merriam-Webster Online Thesaurus
ephemeral (adjective)lasting only for a short time
SYNONYMS:
brief, deciduous, ephemeral, evanescent, flash, fleeting, fugacious, fugitive, impermanent, passing, short-lived, temporary, transient, transitoryRELATED WORDS:
little, short, shortish; acting, interim, provisional, short-termNEAR ANTONYMS:
lifelong; continuing, durable, persistent; imperishable, indefectible, indestructible