What is the correct meaning of the word shrewd?

Question

Although he suffered some major defeats, Napoleon was a shrewd and effective leader.

Answer 1

The adjective shrewd means clever, sharp, practical, and perceptive. i.e Although Napolean suffered some major defeats, he was clever, sharp, practical, and perceptive, and an effective leader.

Answer 2

Shrewd is defined as being sharp and astute in judgment, even cunningly. This says Napoleon was a sharp, cunning, and effective leader.

Answer 3

Shrewd (adj) He had sharp powers of judgement and could guess his opponents next move.

Answer 4

The word shrewd means one who understands the situation well and takes decision accordingly