from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Sharp, perceptive, shrewd.
from the GNU version of the Collaborative International Dictionary of English
- adj. Sharp; shrill.
- adj. Sagacious; acute; subtle; shrewd.
from The Century Dictionary and Cyclopedia
- Sharp, as a taste; shrill, as a sound.
- Subtle; ingenious; sagacious; shrewd; keen.
From Latin argutus, past participle of arguere ‘clarify’. (Wiktionary)