Meaning: Having a very short span of life or something lasting for a very short time.
Synonyms: Transient, fleeting, passing, short-lived, momentary, brief, short.
In Hindi: अल्पकालिक, क्षणिक
Use: Because of her ephemeral memory, she forgets things all the time!
Did you know that bees have an ephemeral 5 week lifespan?