Vi"cious (?), a. [OF. vicious, F. vicieux, fr. L. vitiosus, fr. vitium
vice. See Vice a fault.] 1. Characterized by vice or defects;
defective; faulty; imperfect.
Though I perchance am vicious in my guess.
Shak.
The title of these lords was vicious in its origin.
Burke.
A charge against Bentley of vicious reasoning.
De Quincey.
2. Addicted to vice; corrupt in principles or conduct; depraved;
wicked; as, vicious children; vicious examples; vicious conduct.
Who . . . heard this heavy curse, Servant of servants, on his vicious
race.
Milton.
3. Wanting purity; foul; bad; noxious; as, vicious air, water, etc.
Dryden.