- Alert
- Astute
- Having a keenly alert mind
- Perceptive
- Shrewd
- Astute
- Discerning
- Judicious
- Perspicacious
- Prudent
- Sagacious
- Showing reason
- Astute
- Calculating
- Canny
- Clever and perceptive
- Cunning
- Shh! Rude to talk about calculating
- Inclining to shrew; disposing to curse or scold;
hence, vicious; malicious; evil; wicked; mischievous; vexatious; rough;
unfair; shrewish.
- Astute (5-6)
- Having ready wit