Смысл: high-mettled 
high-mettled [͵haıʹmetld]
a
<Í> мужественный, храбрый
high-mettled steed - горячий /борзый/ конь
<Í> мужественный, храбрый
be on (one's) mettle Идиома
mettle
mettle1.
on one's mettle
roused or prepared to do one's best
2.
on one's mettle
roused or prepared to do one's best
be on (one's) mettle
To be bent to accomplish and appropriately prove one's worth, generally in a difficult or abhorrent situation. I apperceive my advisers anticipate I'm too adolescent to be their supervisor, so I accept to be on my animation every day at the office.Learn more: mettle, onbe on your mettle
be accessible or affected to prove your adeptness to cope able-bodied with a ambitious situation.Learn more: mettle, onbe on, show, prove, etc. your ˈmettle
be able to do the best assignment you can or accomplish as able-bodied as you can in a accurate situation: When the bang-up comes round, I appetite you all to appearance your mettle. ♢ He’ll accept to be on his animation if he wants to win the abutting race. Animation is the adeptness and assurance to do article auspiciously in animosity of difficult conditions.Learn more: mettle
More Idioms/Phrases
An be on (one's) mettle idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with be on (one's) mettle, allowing users to choose the best word for their specific context.
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