1, synonyms are: short, instant, blink, instant, instant and temporary.

2. Basic definition

Short time; Limited in duration, such as a short interruption.

Short-lived, for example, a painter's reputation is based on the shortest entity-the preferences of the public.

Step 3: Example

Their confusion may be short-lived

However, this trend proved to be relatively short-lived.

This news triggered a short-term rise in cotton futures prices.