Use "shrewder" in a sentence

1. Synonyms for Cagier include craftier, shrewder, slier, trickier, wilier, cuter, dodgier, foxier, slicker and subtler

2. Sublime the cataract might be to the casual visitor, but shrewder eyes were taking its measure.

3. Beneath his brash, noisy exterior was a much shrewder and lonelier character than he admitted.

4. Estrilda; genus Estrilda (Avadavats) Learn English with Proverbs "Cowards die many times, but a brave man only dies once." (English proverb) "Never reveal all that you know to others: They might become shrewder than you." (Bhutanese proverb) "The best to sit with in all times is a book."