Astute

An astute reader should be willing to weigh everything they read, including anonymous sources.

You're very astute.

Tom was an astute businessman who made a lot of money.

"Jeeves, my good man, I do believe something is amiss." "What do you mean, sir?" "You are driving on the left side of the road." "Astute observation, sir." "Well, we're in Germany!"

That's very astute, Tom.

The goldsmith was astute and cunning, and knew very well what kind of bird it was.

astute analysis

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astute remark

The best headteachers are like submarine captains – cool-headed, astute decision-makers – who trust their colleagues and surroundings to indicate where their ship is headed.