0 a lot of unnecessary anger and worry about a matter that is not important
1 something of no importance that causes a great deal of excitement or trouble:
But the whole case of this sub-postmaster is a tempest in a teapot.
I hope we can find a solution without having yet another tempest in a teapot.
The presiding judge ruled that the matter was a tempest in a teapot, did not constitute a disturbance in the legal sense of the term.