Something that lasts for a short time is called temporary or ephemeral.
Perishable.
The answer to your clue is "brief." It refers to something that lasts for a short duration or is not long in terms of time.
no a flood only lasts a short amount of time while droughts can last for years
it lasts only for a short term
A long term cause is something that lasts a longer time and a short term cause is something that lasts a shorter time.
A temporary magnet is a magnet that only retains its magnetism for a limited period before losing its magnetic properties.
a short time before sunset on Friday until a short time after sunset on Saturday
A young grub is called a beeling. Generally, this phase lasts only a short time. Usually, a few days at most.
The professional life of an NFL quarterback is short. The average length of an NFL quarterback's career is only 4.4 years.
Sometimes a person may start to feel very tired, headache, 12 hour diarrhea or vomiting which only lasts a short time.
Sometimes a person may start to feel very tired, headache, 12 hour diarrhea or vomiting which only lasts a short time.