Ephemeral

Ephemeral
- Lasting a very short time; short-lived.
- Anything short-lived.

Ephemeral beauty of a dandelion in it's 'puffball' seed form
Image Credits : byronv2 

Usage:
- The public memory of an Olympic medal winner is ephemeral.
- Rahul Gandhi's guerrilla attacks and one-liners may have generated ephemeral interest in the party, but voters still do not have a clear reason for trusting the party, voting it back to power.

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