0 ability and determination when competing or doing something difficult:
1 bravery and determination:
What has been the key to his mettle and to his power to resist?
Indeed, it puts the whole transport industry on its mettle.
I ask my noble friends: where is your mettle?
When cheques were originally introduced, the bank was rather on its mettle.
I am not encouraging substantial wage demands, but am just saying that that is what puts the managing director on his mettle.
We should put the authorities on their mettle and give them a little less time, so that they have to move into action more quickly.
If you can get one corner of the dockyard on its mettle, the standard of work is correspondingly raised.
They could and should have been allowed to prove their mettle.
