A quality of courage and endurance.
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(Scotland) Spirited, vigorous, stout-hearted.
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Good temperament and character.
Its possible that some traders will become less interested as their offline lives resume more fully, but their mettle may really be tested when the market runs into its next downturn.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.