a tame animal or bird is not wild any longer, because it has been trained to live with people [≠ wild]:
dull and disappointing:
Most of the criticism has been pretty tame.
I decided that teaching was too tame for me.
3 [only before noun] British English
used to describe a person who is willing to do what other people ask, even if it is slightly dishonest:
If you have a tame doctor, he might give you a sick note.
—tameness noun [uncountable]